Boyfriend spirals about my past

I (27F) have been with my current bf (27M) for over half a year now. He’s the first to make me be completely myself around him, and we’re very compatible in a lot of ways. There’s only one major recurring issue, and it’s his problem with my sexual past. He’s the 14th person I’ve ever slept with. Before him, I’ve had 2 long-term relationships. He’s much less experienced, having been with 2 girls, each for a couple of months, with years of being alone and celibate in-between. We’re both very liberal and non-religious, so sexual history technically shouldn’t be an issue. He doesn’t judge his sexually open friends about their actions and past, nor has he done it with any other girl he liked – I’m the first one. Also, important to note, my bf has OCD and some relationship OCD left from his last extremely toxic relationship.

It started out slow, he’d ask about what I’ve done, my motives etc. Then it continued, it became even more intense. At some point it was evident he was judging me, even though he didn’t want to and felt terrible about it. He says he loves and trusts me, and really wants us to work. He’s even started therapy because of it, after we were about to break up over another spiraling session where he wouldn’t stop asking questions. The thing is, some of the stuff he says are important to him (such as that I had feelings for the people I slept with) don’t always apply to him (he’s had a fwb who he didn’t even like). I’ve never judged him about his past – in fact, I even wished he had more experience. None of my prior partners were jealous in that way so it’s been throwing me off completely.

I thought therapy might help, but sometimes it feels as though a boundary has been irreversibly crossed and I’ll never be able to trust him with that again. Recently I learned that he had told his closest friend about some of my experiences – that was back before he had started therapy and needed a ear to lend. This friend turned out to be a fake and stunningly stupid, he told all these stories to his gf despite promising to keep them a secret. So now a bunch of people know about my past and judge me without knowing me, all because my bf couldn’t begin therapy when I first asked him to (several months earlier).

I know you’re gonna tell me to break up as it’s only been a few months, but is there any other angle to this? Any idea if it’s worth trying to forgive him as he’s actively working on his issues already? He’s otherwise lovely, deeply cares for me and has never done anything to hurt me intentionally.

TLDR: bf is less experienced and keeps asking me questions about my sexual past, he’s started therapy already but I fear it might be too little too late. He’s told his friend about some of my experiences too

Edit: he’s been in a relationship with 2 girls, otherwise I’m the fifth he’s slept with. Sorry if I was unclear.