I 21f wonder if it’s too early to marry my bf 22m

My boyfriend proposed yesterday and I said yes. I do genuinely want to marry him. We have so much in common and have a great sex life. The problem is our sex life takes up 80% of our time together and I fear once it slows so will our marriage. I just can’t stop being his fucktoy. I have a major cnc kink. I can genuinely not want to be cracked at the start but once he’s inside me he’s all I want. So I’ve told him he can take me whenever he wants. He’s way stronger than me so he can usually subdue me in under a minute when I resist. I did unfortunately win once though lol. I thankfully came to my senses quickly for his sake. We have the same hobbies we like the same food and sports and we naturally get along great but so much of our relationship is just him consensually “raping” me. I don’t know if I’m over thinking it we’ve been together for 3 years and haven’t had any major problems. If anyone here has gone through something similar how did it go? Is it too early?