Ps: After all, you have regarded him as a problem. Maybe the other person doesn't realize how you feel, but just shows his persistence. It seems that your communication in this respect is not very good. Before you bring it up with her, you'd better express your true feelings, which are not necessarily what you have to do or what you need very much. The purpose is to find a way to make her understand your feelings and your psychological situation, so that you won't be entangled in this room, but she may insist on her own waiting.
Sometimes a person will turn traditional conservatism into something similar to "stubbornness" On the one hand, it may be that he is insecure, on the other hand, it may be that this concept has been cultivated for a long time and cannot be easily changed. Maybe she realized it herself, but she was afraid to cross that line.
My suggestion is to get married as soon as possible if the marriage can improve, so as not to cause any complications. Let's just say it and make our thoughts clear. There is nothing to be afraid of. After all, after being together for so long, we all have a certain tacit understanding.
After a long time, negative emotions will accumulate in your mind, which will have an impact on your future marriage or sex life. It's better to solve it early. Your time is not short, I can see that you don't have this idea for a day or two.
I hope this helps.