yeah a little later there are similar scenes. Like when you say as Ian that you dont like that Lena is sharing herself with other guys via stalkafap... her reaction is pretty harsh, even way more harsh than the "Holly Kiss" incident... but it can be patched up again. Those scenes are not that often, but there are some of them (i think i saw about 3 of those scenes already)... you have to make some more wrong turns for a permanent breakup, even though sometimes it seems like its "done for"... the realtionship between LEna and Ian isnt very stable... it takes time... so about chapter 12 they kinda found "each other" for real i think, even with some obstacles here and there (my ian kissed Holly too, and isnt fond of stalkafap, but yet they are deeply in love now) if you didnt go a cheating route that is.
Its never a "smooth sailing" in a relationship... EK managed to get that good into the game. Not for every relationship, but for Lena/Ian, or Ian/Cindy for example.