I believe she was wrong about Lorenzo but its one and very minor thing.
Absolutely not minor, narratively it is used to signify and undermine the idea that the pimp has any sort of truth behind her words.
In her own admission in that convo she says:
M "In most stories, there's more than one truth."
M "I have my memories of Lacey's life in college."
M "And she has hers."
Exactly after she created drama with her obviously wrong, recount of the events.
She also implies that Lacey is the one that lies, washing her hands off Lacey's past and saying that things do not make sense.
Act 2 lets us discover why she thinks like this, because she didn't know who was the person in front of them and what she was doing.
Remember this is the woman that was telling the truth when she was angry about Lacey listening to MC songs instead of fucking and be happy like she wanted her to.
Why? because she had no idea about what Lacey was going through and didn't care to know.
She never asked her about her childhood too.
The thing with Mia, is that unlike Lacey, for most things she comes with receipts. Lacey's denial is always just words.
Which receipts? the pictures? ot the recount of a person that had her head so far up in her own ass that thought about having a last "hurrah" with an addict trying to clean up?
Many years ago there was this viral picture, that I can't find anymore, it showed 2 soldiers and a wounded civilian.
If you cut one side you chould see a soldier pointing a gun at the civilian, if you cut the other you could see a soldier giving him water.
The reality was that you have to look at the whole picture to understand the situation, the pimp mental image of Lacey is wrong, it is the theme of their relationship, she doesn't even know the other side ffs.
And if you are talking about the pictures she brings as receit, no one is discussing that they exist, it is the motivation that changes.
As usual I need to underline that I do not accept what Lacey did, in fact one of my major points is that Lacey had more fun than she makes us believe, but the pimp has no clue of what and where that fun was.
Her interest in Lacey was at best if she liked a specific sex thing or not, and you should know why.
She cared about the sex part because it was her objective, Lacey's feelings were not even in the picture for her.
M "And seriously, by the time it was all over, she was sick and tired of that life."
M "
It caused a lot of mental and emotional damage to her."
This is the character we are putting our stock in to tell a truthful reccount of the events.
Was she wrong about Lacey being a turbo slut in college and omitting truth when asked? No, she was right.
I don't know what this means, are you referring to the lessons?
Even then, she confirms a lot of what Lacey then says to MC, such as:
M "You were always her goal."
Was she wrong when she claimed Lacey did have relationships in college? No, she was right.
M "It was when they started getting too close to Lacey that she put a stop to it."
M "'No emotional attachments Mia, that's the rule'."
M "I guess that's how she kept what she was doing separate from how she felt about you."
Or are you twisting (I don't know a better word, I don't mean this negatively) dialogues such as:
M "Well, Isaac was the third semi emotional attachment Lacey made."
Because she only says that if MC was not there Lacey could have probably dated Stephen and Lorenzo, but has nothing to prove it, it is her impression, no "receipts"
Was she wrong when she claimed Lacey was enjoying what she was doing and showing receipts? Lacey denies with just words saying she was always drugged and couldn't even remember what she was doing. A blatant lie because she did remember with fine details. And judging from both the pics and looking at her enjoying being a married slut for Damien and Morty, where is the lie here?
The convo you mentioned has her replying with the monster line and then whining about Mia not asking her instead of assuming. But at the same time when discussing being the college slut with MC, she cannot give an answer about why she did all that. So what is this enlightening answer that she would have given Mia, that she cannot give to him? It's standard Lacey deflect and redirect bs, there is no way you haven't picked up on that.
The lie comes from her not understanding a single thing.
Lacey enjoyment is a contentious topic, that I also want more of, and her memory is another thing that is managed poorly in the story.
What we can try to think, to make peace of it, is that her memory works relatively well (fuzzy things here and there) aside from the moments where she is high on K.
Now that I am done with the preamble, you are judging Lacey from the fact that she enjoys sex, sure ok, she probably enjoys it more than a normal person?
I have criticized heavily both Damian and Jealousy Date in their intention and execution, I do not see the connection to her college life aside from having a full on separation between sex and love (which, honestly, I doubt but I cannot be like the pimp and make assumptions).
I mean, I am deep in the story, I think that I do not miss things often.
The point of that convo is to underline the basic misunderstanding of Lacey's character and motivations by the pimp.
Or was the pimp lying here?
M "You were always there on her mind."
and
M "You were always her goal."
Because one is A and the other is NOT A.
Phase 3 is hard to understand, the pimp never understood.
This is how the story is written, this is the message.
My strong attachment to the concept that Lacey had more fun than we actually know is in my mind but it is only vaguely hinted by a couple of answers to the KW, that are hastly put together tbh and contain consistency errors.
C'mon DF relax, lay down in the coach.
Adjusts glasses and starts taking notes in a small notebook. Tell Doctor Vincenccio WHY you wanted to. Lets explore more. We need to go deeper. How was your relationship with your daddy?

Look I am entering a meeting right now (no I am not the monster), but I am actually interested now in building something with all Lacey's excuses and self contradictions.
I think I'll do that at some point.