It is a struggle with our mates, but in my opinion, Are you marrying for love or did you marry for sex. In 35 years I have not desired sex with my wife. I can count the times on all my fingers and toes. When I was 42 and got heart disease ,I could not have sex with my wife. Wait, please do not read anything into that. My wife is my rock and I rely on her to keep me sane and we have a very robust love respect and intimacy with each other. Perhaps it's holding hands as we walk. Maybe giving a hug when it is not expected. Maybe it is just looking in each others eyes and knowing you have an ally. As with any good relationship, keep the lines of communication open and don't be afraid. Just as you should not fear the relatives. Listen to what they have to say and then graciously remind them that you respect their lives and you expect the same from them or you are prepared to go different ways. I've had to do that with some long time friends. Some I have known since kindergarten 61 years ago. Good luck.