I mean, she is the love of his life, a childhood friend ( yes she really is just that you weirdos
) that he met again after a pretty long time and they immediately continued like they did back in the day. Like the others say, they are the best couple in the world.
I just hope that we can have more dialogue option in the future and that they affect the game, for example, i know that the mc is a really "good boy" but after the ending, and the way that he complete forgive lena (yeah, i have downloaded the bugged version) really piss me off, like he don't have any will, any balls. I understand that he is a nice guy, but that was a dick move and still piss me off even today, for example i understand the anger of Jessica (and i probably understand why she is the way she is, even trying to take the kids), also i don't understand how he allow lena to leave, knowing that she was that way. (fuck me marriage, fuck everything, the kids always come in the first place), yeah, if she needed time to think, ok, but don't look like, look like she was running and he just allow her to leave, everything that she have done piss me off (maybe because i'm in a similar situation). And i will complete honest, if i was in his position (because i'm a spiteful person) it will take a hell long time to forgive her for both not telling everything and leaving. Sorry if i was saying the same stuff over and over, but that revelation really make me angry, even if at the start i was almost sure that i was right.