When I tried to come out to my ex-boyfriend he just laughed like crazy. I happened to be drinking water and he joked about it being girl cum.
That's a little bit... much... And this is coming from someone who can handle a lot in terms of gay jokes. Heck, last night my friend's boyfriend kept making scissoring remarks towards me, and he once called me the "Queen of Oral Support" and I just rolled with it. But that kind of remark is pretty rude.