Can't physically deal with something that happened to me earlier. Help.

Ok.. so I stayed at a friends last night and he drove me home this morning. When I got out the car there was period blood on his car seat. (His car seats are leather so it can be removed easily). I got my period over a week early and I had no idea. When I got out he goes wait, what's this? I knew exactly what it was but made out I didn't. I apologised and quickly said goodbye. I am so embarrassed I keep replaying it over and over and over in my mind and what he must think of me. I sent him a text saying I don't know if you knew what that was in your car but I'm really sorry and am so embarrassed. He replied with I wouldn't worry about it, I'm none the wiser. I haven't known him or his friends for that long and while he is a nice guy I just can't stop thinking 1. What he must think of me and 2. If he will tell his friends.

I probably won't see him until next weekend.. should I bring it up then and just say I'm really sorry and I'm so embarrassed I didn't realise I was on my period it came early?!

or should I not say anything?!

Guys.. if this happened to you what would you think?

I just feel like he thinks it's absolutely disgusting and I know he sort of likes me and I just feel like this will put him completely off. And I feel so bad that he would have had to clean it when he got home.

I can't believe I'm even writing this here I couldn't be any more embarrassed and it's not the kind of embarrassment you can genuinely laugh off.. this is just another level. I feel so bad, I can't stop thinking about it and what he must think of me. I know people reading this will think it's gross but I can't not write about it somewhere and vent what I feel about it cause I feel like I almost want to throw up or self harm over how embarrassed and disgusting I feel. :blush