Seems like he forgot all about her as if she wasn't really that important to him. I see a lot of people claiming that Vergil MUST have loved her... I'm not so sure about it tbh. Maybe I'm just dumb for thinking this but I don't think Vergil really cared about her it seems. I'm not disappointed in that if he didn't care about her. But even Dan says that she'd have to be siginificant to Vergil... can't tell whether that's just his own opinion/input on that or if he knows something because everyone takes what he said to heart and act like it's canon or something.... others want her to be important in DMC6. I honestly don't really see her being THAT important in DMC6 (personally speaking) but I do wish that things were at least explained. Then again I could come up with reasons as to why Vergil forgot about her. But it seems like he easily remembers his own mother (which makes sense why he would) but not his own lover? I don't know it seemed odd to me. Maybe Vergil was just too focused on his fight with Dante or perhaps he couldn't constrate on anything at that moment. It's odd that V didn't immediately assume that Nero was his son but everyone says that he (Vergil or even V) assumed he was Dante's son. But if he knew he even had a child of his own you'd think he'd find out a lot sooner or something like idk.
Anyways I saw Legion and someone else on here talk about this and I honestly agree with Legion when he said that she was probably so unremarkable that Vergil couldn't be bothered to even remember her until Dante said "You can't remember through that thick skull of yours?" and Vergil's response was "Well well, that was a long time ago". Then again a lot of things could be assumed by that line I suppose but it just felt like in the end.. he didn't care. I think that Nero's mom being a prostitute has been debunked from comments that I have read so there's goes that theory. A lot of people want her to be very important to Vergil... but am I the only who doesn't see that happening? I mean if happens though.. then so be it I guess. Just feels like she's kinda irrelevant. I don't know..