A young engaged man and his fiancée naturally have very strong feelings for each other. It goes without saying that these will be expressed after the wedding, but what expression, if any, is permitted in the meantime? And while we're on the subject, is the attraction of men and women to each other really a good thing to begin with?
Regarding the disputes between your parents, the proper path to take is to avoid any involvement whatsoever. Even if it appears as if you can be of help, this is an optical illusion. Family members almost always worsen matters when they intervene.
Why must a person marry? People often date because of social pressure, parents, etc., yet they do not really desire to marry. In such circumstances there is very little prospect of a making a successful match.