I think that you only need Lena and Holly to kiss (lena_go_holly 5 IIRC) and Ian to either be dating Lena or Holly. With that Holly confesses to Ian the kiss and as long as you don't choose Ian to react negatively it should be ok (you get holly_trinity to 1 or 2, maybe better go for the most positive response just to be sure).How you guys got the option of Ian-Holly having a talk with Lena in the last update anyway?
Did you make Ian fuck both and Lena getting angry or with fucking Holly is enough?