Perfect Gonzo. Be ready for endless pleasure right here and right now.
It seems to me like you are walking into a relationship where there is a significant disconnect from the start. Love and support them just as you would if your husband was a carpenter.
What would your relationship look like if you were to marry. It MAY be true that she will be miserable with him and make him miserable with her.
If you do end up having sexual relations, she will feel guilty, and it will affect your relationship, you can count on that.