I KNOW IM NOT CRAZY **Long Story**

ok so i was looking at my lady parts today and i became aware of something but i realised no one else ever asks about it and i never see it on pictures and diagrams. Its like this pink V shaped skin right above my vagina (hole?) it just looked like a blob until i touched it and i saw it separates at the top and resembles a V. I noticed it before about 2years and some change ago while having unprotected sex. It was way too slippery and i know i wasnt enjoying it that much so i had to ask (my bf at the time) if he came already and he was like no thats you. this wet thing was everywhere amd i started to smell blood so i turned on the light and it looked like a murder scene. His pubic area, the bedsheet and my sugarlumps had blood smeared all over. I kinda felt this dull ache down there so grabbed the first thing in sight which happened to be a white drying towel and i dabbed between my legs and the towel was completely covered in red. I thought I was gonna die because i never saw that much blood at one time. i took a shower and investigated with my mirror when the bleeding slowed down and thats when i first noticed the blob because thats where the blood was coming from. I bled for a couple days after that. My blob seemed to have mended itself now and No that wasnt my first time having sex. Can someone tell me what it is, if they have it to, if that ever happened to them, anything!! (Google was not helpful at all)