Your question isn't vulnerable and you don't sound like a tool. If it's important to you or it's causing you to feel upset then it IS important and nobody should be trying to belittle your feelings.
Rooshv's post about what being a man is has nothing to do with you. It's his stereotypical emotionless male gender box that he seems pretty happy to trap himself in, but that doesn't mean he should be making you feel like you need to be the same.
Being a man is identifying as a man. That is it, basically. If you feel comfortable answering "yes" to the question "are you a man?" then you are a man. In my opinion, that's the criteria.
OP, your posts are wonderful and if I could rep every single one, I would.
As to your original post.
"Are women at all picky about guys being virgins?" - As always, these kind of things are painfully down to the individual. I think as we all age we grow accustomed to the idea that others of the same age and older most likely aren't virgins because by then we'll have all had more and more opportunities. Generally, when I chat to other women about this kind of thing, meeting a guy who is a virgin is always talked about like it's a shock. Meeting a guy and taking his virginity is deemed as something pretty big to some people, because they assume that men will typically be sleeping with people more so than women will. I don't really agree with this but, regardless, virgins are usually seen as this amazing special gem to find in a sea of people that have already been with someone else.
Personally? I think it's ********. Virginity is only as meaningful as you make it and if you lost it to someone you wish you hadn't, screw it. In my opinion, having sex for the first time is a painful, awkward and stressful thing (bearing in mind I'm female) and it all becomes irrelevant when you meet someone who you really click with sexually. You gave them your least impressive sexual experience and you'll be able to have much more fun with someone now you know what you're doing. A lot of people feel more comfortable sleeping with someone who has a bit of experience, so don't fret that you will be judged for not being a virgin. You most likely won't, but if you are you needn't bother with the person doing the judging.
Mainly, I'm really sorry to hear you had an abusive ex and that you have to deal with knowing you lost your virginity to them. I understand if despite my post, you still feel that this is really significant in some way. The best thing you can do is see it as experience under your belt, not just sexually, but relationship-wise and such as well. When sleeping with someone new in the future, hopefully someone you really want it to be, there will be moments of "I WISH I'd waited for you" and this will hurt. But it won't hurt you enough to overpower the wonderful feeling of being with someone you truly want to being with and feeling happy that you got to the right place in the end.
Someone who loves you won't care who you were with before, if anyone, they will love you and see your relationship as a clean slate. Just never compare the old to the new and you will hopefully be really happy.
I'm sorry if I rambled or haven't helped at all
I wish you all the best.