he went soft?

Okay so some of you might know that I've been struggling with excessive bleeding during sex. So far it hasn't really effected my relationship with my SO. As I've been in hospital 3 times in the past week we haven't had sex at all. So last night I was excited as anything, we had the usual foreplay and then I got on top. I was confused as to why the position didn't feel 'deep'. So I got off and yep, he went soft 😭 this is the first time this has happened and I honestly wanted to cry. I feel as though it's my fault. After that he couldn't get hard again so we went to sleep. He said it was because he kept thinking is that wetness or blood? It was just I was really wet! Anyways I'm gutted that my issue is now affecting my sex life and there's no reason the doctors can come up with as to why it's happening :(