I’m literally fucking mortified, am I over reacting???

So I live with my ex and his parents (very very long story to get into). Lately I got my first yeast infection (I know gross but normal apparently) and since then when I have to pee, I gotta go right then or I’ll pee my pants (few accidents proved this), no UTI, I got checked, and that isn’t even the worst part. I usually check the toilet and everything to make sure it’s clean but after doing it a million and 20 fucking times I just stopped checking because it’s never dirty. Well tonight I really had to pee, so I run to the bathroom, drop my pants and sit. I go to wipe and feel my thigh is wet, so I thought maybe I peed a little when I was squatting (I know I’m not the first to think this) NOPE. Boy was I wrong.

My ex’s step dad VOMITED all over the toilet seat, floor and sink. DID NOT BOTHER TO CLEAN IT UP. Mind you he had went to bed about an hour prior to this. HIS FUCKING VOMIT ALL OVER THE BATHROOM. We all share 1 bathroom. 1!! Mortified! I am crying because I don’t know what to think. Like what the fuck 😭😭😭 this is SO FUCKING DISGUSTING. I told my ex after I got out of the shower and he said I’m over reacting and that he will talk to his step dad about it tomorrow. I SAT IN A GROWN ASS MAN’S VOMIT. A child I can under stand. A 40 YEAR OLD MAN’S VOMIT. FUCKING VOMIT. ON MY ASS. Now I literally feel like I need to get an STD check because his body fluid touched my vagina 😭 my labia also kind burns now and I’m mortified that I touched this man’s body fluid on my naked underside 😭 I know the STD check may be a bit much, but I don’t know this man too well (they are only Spanish speakers and I only speak English) and I know they don’t get checked because well, they are illegal and don’t have medical insurance, and he isn’t exactly a saint 😪😪 guys I’m so serious, this is so disgusting. I just really can’t 😭

Update: He told his mom and his whole family thought it was fucking hilarious. I AM LIVID, I still think this is so damn nasty 🤢🤢