Girlfriend showed me (hemophobe) bloody tampon

I am extremely hemophobic (irrational fear of blood). Thinking about blood can make me feel queasy and light headed, so I prefer to sit down when I have to. Any blood I see causes me to pass out on the spot. I’ve had therapy but that was a total waste of money.

So I’ve been living with my girlfriend for almost 3 months and things have been peachy until just now. She rolls up tp around her tampons and throws them in a bin inside the bathroom. The other night I passed out and needed stitches to close a gash on my head. I told her to get a new bin so I don’t have to see it, and she told me to get get over myself. That really pissed me off so I escalated it into a shouting match and she ended up pulling out her tampon and waved it at me. I passed out and reopened my wound. I’m considering breaking up with her and filing a lawsuit. (I’m not looking for legal advice.) Her family and most of my friends are saying I should just get over it. Am I insane?