Bloody nose while going down.

Hey y'all! So right to it.. my boyfriend LOVES to go down on me. he also gets unexpected nose bleeds... I was so close to finishing and he snaps up and says he tastes blood. Anyway it's been a few days later and he still feels so bad. Really the only reason why I jumped up so quick was because I thought I had gotten my period at that time. I kinda find it a little laughable now and I try to let him know it wasn't a big deal. But now every time we get hot and heavy he is super cautious and only stays down there for a few seconds. How do I reassure him it didn't bother me that much? I need that mouth again😂