Please help!

So my boyfriend and I were having sex in some public bathroom at a fruit market...ik weird. We didn't have any condoms so we just did anal. Next thing I know he's shoving some weird thing up my vagina. So I freak out look down there and he's shoving the handle of a toilet brush that he just found in the bathroom into my pussy. I mean I totally got mad I made him exit both my holes..I took a close look at the toilet brush handle and it looked pretty grimy. Could I get an infection or something?

p.s. my boyfriend and I are on a break...who even does that? ew...