Part of what is happening is post nut clarity, he feels guilty as hell for what he did, and so he argues with himself about it. Lilith goes through the same process that Frank does, and if you play the side game you see it. Essentially, after her biodad left, Lilith wanted a father. As she got older, she also wanted a Daddy in bed. It takes Frank moving out and her horrible breakup with Justin to finally be able to admit to herself that what she wanted was Frank to be her Father and her Daddy. Even Lilith tries to ignore her feelings and gives in eventually. She knew Frank was there for her since the beginning but could not admit her true feelings. The difference is that when Lilith wants something and goes for it, she does not think twice about it. Frank is getting there, but it takes him longer to reconcile what all of his true feelings are. Frank is not like the MC of Proud Father, Parental Love or Dating My Daughter. He knows what he wants but is afraid of the consequences of going for it. That seems reasonable, but it is different for an MC in a game like this.
Hmm.. I think nobody disagrees with that. It's more a question of proportion. After playing this game you get the feeling it's about 60% hand-wringing, 10% erotica, and 30% story (I know that's not true, but you get that feeling because of the repetitiveness). I keep saying that I have no problem with the fact that it is in the game, but I have problems with the amount and repetitiveness of it. It feels like a cheap copy and paste (again - not true in reality, but it feels like that). At the end it's getting an empty routine that adds nothing to the story and feels like filler (and goes from giving feelings for the MC into annoyance onto the MC).
As I said - It's absolutely not the fact that it's there, but the proportionality of it that honestly does damage to the game. As a result I have put this VN on hold for now and wait until something changes in a positive way. I really love the story and the characters, I honestly can't say that enough, but have more and more trouble overcoming the long and hugely repetitive hand-wringing periods. It gets from interesting and full of feelings into dull and boring. From interesting and sympathetic to "Sigh, not again please". You can only use an effect in a VN that much until it gets too repetitive. An VN is not real life, and if you do not carefully balance stuff in it, there is a chance that the VN will damaged by that, and will loose it's attractiveness in the long turn. I do not say that's already happening, but seen the reactions (especially from newcomers), it's really going on thin ice now.
This it, of course, a personal view. But I think I am not the only one with that view. And, also of course, this is only a commentary and no critique to the writer or attempt to change anything. Maybe people find this critique repetitive, but keep in mind it's a critique on the repetitiveness of the game/VN itself. So that's to be expected to be honest...