Am i a bad best friend?

my best friend and i have been friends for 13yrs after he told me that he was gay it obviously changeed our situation a little it reallly cahnged when he said that he loved me..... he started to become really really open crackin gay jokes and like play hittin on me idk it makes me really uncomfortable it didnt at first cause i figured he had to get it outta his system but it just kept going and kept getting worse i never say anything though i have told him it makes me uncomfortable..... when i met my girl i asked my best friend if i could borrow four grand to buy her a ring and i thought she was the one i was totally infatuated with her....... i did not hang out with my friend as much as i used too but i was head over heels for her for the time being....... i dk what the problem is all i know is that i live with my best friend and i also work almost 40 hrs with him and he never wants to do anything unless it is just me, otherwise he says i dont spend enough time with him what am i doing wrong???? anyquestionS?