what do i do?

there's so much things happening in my relationship lately... 9 months relationship we're talking about here. 
firstly me and my boyfriend might need to split up due to the religion barrier he's muslim and i'm catholic and his mum hates me a lot because i'm not muslim and i dog want to convert, but my boyfriend said "oh it'll be fine" when i'm really not comfortable with the religion barrier for example, she wants a wedding in a muslim place (i forget what there called) but i really don't, i want a simple church wedding. 
secondly we've been arguing lately because i have a boy bestfriend and my boyfriend is convinced i'm cheating like her doesn't trust me at all :( me and my boy bestfriend are very close but i tell my boyfriend not to worry about him he's only a friend and there's a reason why i'm dating him, be moans at me a lot and tells me i'm not allowed to go out and meet any boys because it's cheating i hate it so much :( 
someone please help and give advice i'm just not happy atm.