Thank you for taking the time to 'vent' here, it really helps!

Let me say that I can relate to a LOT of what you've been going through, with only very minor differences.
I'm the same age, and am in largely the same situation. I've never engaged in an intimate way with a girl, ever. No kissing, nothing. The difference for me is that whereas your issues seem to come from a passive disinterest in/moderate revulsion to sexual activity, I have a lifelong hatred of my own sexuality. But it leads to the same issues, the same social awkwardness, the same avoidance of the 'virgin' stigma, the same morbid curiosity about potential sexual encounters, etc.
In my years of dealing with the raging self-hatred that comes with my own issues with sex, I can recommend one thing above all else.
Talk to someone!
The forums are a great place to vent and get advice, but nothing has helped me like talking to a real person has. I highly recommend trying to find a therapist that works for you, it's more helpful than you can imagine. Short of that, if you have a trusted friend or even a family member you'd feel comfortable sharing these issues with, then that would work wonders as well. But if this is a problem that this taking up a significant portion of your life, I would say try your best to find a therapist. Helping people sort out tricky problems like this and process how to feel is what they do and it has been enormously beneficial in my experience, which sounds eerily similar to yours.

You're taking a step in the right direction just posting in here, trust me. I hope you find the resolution you're looking for.