There are some men that are not comfortable jumping in the sack with everyone though. I think what the people are trying to say is they feel a fondness but the passion is gone. They are trying to let the person down easy I guess. Being in love and feeling in love is kind of synonymous. Love is something you do to someone.
Infatuation is a short-lived thing.
It feels real good but can't be sustained forever. My husband and I were both virgins when we married three months ago. If you were virgins, then you have a wonderfully broad sexual playing field to explore. If he is not comfortable yet, you need to be encouraging and suggestive. You can get books to find some ideas.