I've pretty much allowed Alexia to fool around with every option so far (except Andras cause he's a cunt), and same for Rowan with every female that moves, and they've still been the most deeply bonded. I don't see how they could be any more so, unless I'd kept Alexia in the same room. But then I guess I would've missed HelaynaOn my first play through, I had Alexia stay faithful, and only had Rowan sleep around a just little bit, and I wasn't disappointed at all. I've certainly played eroge visual novels with a lot less content.
How long did your 2nd run take you?