I don't get why people tread Jean as so hard to get love from.
She is not like the others. She has different likes, and is harder to please initially, but while her love grows slower her inhibition grows much faster, and even starts pretty high already.
I honestly wish the others were as varied as her, instead of being able to become just the same after a past point.
My main strategy at first was just to meet her in the pool and compliment her, to open her for more interactions.
And no, I did not do the "addictiveness" or the "change personality" method. It would be easy for just the sex scenes, but I wanted the challenge of the gameplay too, since we don't have a proper storyline in this yet. (I remember when I first downloaded it, when Rogue was the only one with addiction, it said this was just to test the mechanics and a storyline would be added soon, but I now think that is not going to happen anymore)