Only one here?..

So idk about you but it feels like every time me and my boyfriend goes out like (not on a date but just chill and like see each other) free like 10 min of seeing me he is like dtf...like we can't even watch a movie without him wanted to get freaky for example like on Xmas... He wanted to have sex when hi family was there !!! With his door open at his house ...like bruh... Comon...or we can't go to the park or just chill or practically anything. Ima just say that I can count at least 3 times out of the 10002938 times we have hung out where we didn't have sex... Like..really. Is that like wrong for me to say? Or what cause I'm 15 and he's 17 I just need advice because it's kinda rude in my opinion when I wanna chill and lay down but he wanna fuck like .. Oml I've told him before I don't feel in the mood rn. And then he will just talk and talk and talk about it until he drives me crazy then I just give into him to shut him up, but we have been together for 7 months and I love him I really do...but thy part about him just kills me. Is it a stage ? Will he grow out of it?