So some background, I'm 28 and a virgin and still struggling when it comes to dealing with women, but I'm getting there.

Now as for my situation, there's this girl that I met at a party that was thrown by a mutual friend a few months ago. We started hanging out a few weeks ago after we met again at another party until I finally asked her out just a couple of weeks after. We had our 2nd date just this past weekend and we ended up back at her place where we eventually started making out and did this until the morning, but never fucked since she wouldn't allow me to take off her panties. We slept for a couple of hours or so and after we woke up I went for it again and this time she was DTF. Problem was I couldn't keep it up. I guess I was having performance anxiety or something. Anyway, eventually I got a little frustrated (but not angry) and confessed to her that I was a virgin. The moment I saw her reaction, I knew I fucked up, because I broke frame and killed the attraction.

Unsurprisingly, she calls me last night and tells me that she's not looking for a serious relationship. I told her I wasn't either then she says she felt it was heading that way. Obviously this is bullshit because we literally only went on 2 dates, so there's no way I'd consider even being serious at this point, unfortunately I didn't call her out on it. Then she says that we can still be friends, to which I responded that I wasn't looking for friends. After that we said our goodbyes.

I texted her later saying that since we're not looking for anything serious we could be FWB (stupid fucking idea, I know) and she doesn't respond until this morning saying that she doesn't have the time. So now I'm at the point where I'm just about ready to burn this bridge down, but at the same time I'm hesitant about it because we have a mutual friend whose parties we go to regularly. My friend also happens to be one of my colleagues at work so I don't want to alienate him by doing this. I talked to my older brother and sis about this and they recommended not to burn it down and maybe message her after a few weeks or so to see if she wanted to chill, but I'm somewhat skeptical of this. So now my question is, should I burn this bridge down and if so, how does one go about it without affecting my friendship with my buddy?

tl;dr I'm a virgin, met a girl through a mutual friend and we were gonna fuck but I couldn't keep it up, confess virginity to her, calls later and says she's not looking for anything serious, don't know if I should burn bridge as it might affect my friendship with mutual friend.