We're extremely sexually active and we usually have sex every other day. 

My girlfriend told me that she's on her period. I didn't pay any mind to it. Until, she asked me to have sex with her. I'm afraid of blood, it's not a fetish of mine. I have a panic attack if I see blood on my toothbrush. I just don't like blood, she knows that. I went to the hospital because I fainted when I saw my blood. I really don't fuck with that. It's very severe, yada, yada, not much else to explain there. 

I said no, she asked me again a day later. I said no, she keeps asking me over and over, I keep saying no. We usually always have a break during her period. It's very routine. But, now she's extremely unhappy with me. 

Her period is over now, I guess. I didn't believe her at first but it is. I still said no because I don't want to risk it. She's been ignoring me, complaining to her friends, she pushed me into the wall, she's just extremely upset. I just don't know what I did wrong. I never called her disgusting for it, I'm just hemophobic. 