If you start right in begging she will have 400+ love gift her book and vibrator and you get to about 470 Flirtingng with her by giving massage and studying with her will help you with restof the points and after you reach 500 love with her, you can start to dating her and it will pick up from there.
You must be with her (in the green top & skirt outfit) in the danger room, take a training, then confirm the ripped tights in the next dialog.
and also pregnancy..because reasons 
You enabled developer mode right?
So you tried to play a modded version of the game from an older version of the game on this latest version, if I'm understanding you correctly? Assuming you know that you'll be missing lots of assets, you may just need a new game.
Ideally you'll want to restart a new game with every new version, but if it's a bugfix version it may be okay to just play with an old save. There won't be any new content with an old save on a new version, so yea.
By hate you, do you mean that when you try to do things with her, she just rejects you? You'll need to work alot with stroking her cheek and talking to her a lot. You'll get her phone number just through talking (even in the shower) and you can get lots of stuff done once you do.
Were you trying to enter the test room? Maybe I'm just dumb but that area doesn't work for me either. If that's popping up just for trying to get to Rogue's room normally, then are you using an older save file?
No, I had old modded version and this new version separately and when I try to start old version, it opens new version without any mod
Hrm... I can't think of any issues off the top of my head that may cause something like this to happen. Maybe you just want to download a new modded version of the game (since you already have the latest version of the unmodded game), and see what happens. This never happened for me, so I can't really comment anything that may strictly help you. Sorry.
