<human>: Today I received a call from my OB/GYN saying that I tested positive for Chlamydia when I took a pee test on my appointment on Tuesday. The receptionist said that she would send a prescription for a one dose antibiotic to my pharmacy and that once I took it everything would be fine.

I called my boyfriend immediately and he is absolutely furious with me. I cheated on him one time in early May, but I used a condom and when I went to the doctor in June I was told everything was normal. He knows that I cheated and he refuses to believe that he could have given it to me, even though his body count triples mine and we've had unprotected sex plenty of times. Even though it is much more likely that I got it from my bf, he insists that I got it from the other guy. I feel like this has just rehashed some bad old moments and he's using it to justify all the internal anger he has towards me.

I did some research and it is possible that the infection was dormant in his body without any symptoms and he didn't know about it because he has never gotten tested. I also read that the bacteria can survive on a towel for some time and the disease can be contracted this way. The only other explanation I can think of is that when we were at beach week a month ago, I noticed that other people in my room had been using my towel, one of which was my boyfriend's insanely promiscuous best friend (multiple new partners a week, and he doesn't use condoms).

My goal isn't to determine who gave it to who, I'm just worried that he's too proud to admit that he could be responsible, and instead will choose to believe that I cheated more than I really did. The point is that it happened, it's treatable, and we have to deal with it like mature people. 

What do I do? We love each other so much and have been through worse than this, I don't want this situation to take him back to the rockier parts of our relationship.

Give me a shortened version of the text
<bot>: I found out I have Chlamydia, boyfriend insists that I got it from the guy I cheated with months ago and is angry with me instead of acknowledging that we are both equally responsible and affected by it.