so my boyfriend asked my body count and now is upset....

what am I supposed to say? I explained to him that I went through a phase of promiscuity a few years back and that I had stopped counting. he asked if they were all protected and I didn't lie to him and said over half were. I also told him that I have been tested and checked since and that I'm clean. now he's saying this? I know he doesn't mean it in a derogatory way as in I'm a slut, he's just insecure when it comes to sex, even though I have told him time and time again that he is the best I've had (not lying), and that I don't like talking about the subject of my past sex life because I'm ashamed of it. I know ultimately I shouldn't be but this was before my BPD was diagnosed and taken care of, so I did a lot of high risk things including binge shopping, and sleeping around. I just don't know what to say to him. I almost feel like I should have just lied to him and told him a lower number so he wouldn't freak out like this :/