Depression

I finally found out how my exboyfriend gave me hsv 2.... when we were dating he was out with his friends & he got really drunk he said he ended up having unprotected sex with this random girl, he said today he couldn’t even tell you what she looks like. I’m extra hurt because I’m the one who picked him up that night he got super drunk & he didn’t say anything to me about that situation so our relationship continued like normal. i knew he was really drunk i just didn’t know he would cheat on me behind my back. He said a few days after he knew something was off but chose to never go to the doctor or say anything to me before we had sex like usual. I’ve officially ended things with him after hearing this, it broke me again even after being diagnosed for a few months now. I feel like i worked so hard to not be depressed from having this STD but now i feel like i have to start all over again. I feel so upset & disgusting & just HURT. I don’t know why God let something like this happen to me, I’m a good person & we were dating for 2 years he’s the only man I’ve ever had sex with & i always tried to be careful (birth control & condoms)... idk what to do or how to start healing so I can be happy again. I just feel so broken inside someone please help me i feel like I’m dying inside idk what to do.