Relationship trouble?

My boyfriend and i have been together over a year and he is my best friend and i am so happy with him, like stupidly happy but recently i'm a bit scared that we're growing apart I don't know if i'm over thinking it. He seems kinda distant and he doesn't really seem to want to have sex. We used to be so passionate having sex anywhere and multiple times every time we saw eachother but now he seems to either just want to watch netflix without the whole "chill" part or he wants me to give him head. Like come on man would it kill you to be romantic? Any advice on trying to spice things up a bit to get his attention back??