dilemma

I've been in a relationship for almost a year now and we were best friends for the majority of secondary school, so we go way back. Recently I've been feeling kind of suffocated in a way? He always sends me tiktoks and reels about our relationship and how he feels about me, and I dont just mean a few, I mean literally 25 a day. I've never been love bombed like this and he knows I have never been super comfortable with affection and stuff like that. Granted, I was a lot more open to it at the start of the relationship because it was new to me. But I feel like I'm making it really obvious and I feel like he js doesn't get it.
I don't want it to seem like I'm a horrible person and I don't want to make it awkward by breaking up because our friendship really means a lot to me, but it's starting to feel like it's the right thing to do.
Also, I am someone who dates to marry - we are from different cultures and religions and his parents have made it very clear that they refuse to let him marry outside of his culture. are we just wasting our time and delaying the inevitable?
Any advice is appreciated, I feel like its driving me insane