It sounds to me (just my opinion) that you are not comfortable w/all this sexual "openness" & want a partner who WANTS to be monogamous w/you--not do it because you are like a mother figure saying, "No. These are the rules." It seems that maybe the two of you do not have the same opinions & values on this VERY important issue.

I would strongly encourage you to speak to a therapist about this to get both of you to understand what your true values & thoughts & feelings are about this issue.

Personally, I couldn't be w/someone who cheats sexually or wants to take the sexual experience outside of the marriage. It is a very special bond to me & to my husband, as well. So, for me, this would be a "deal breaker."

These & many other topics that need to be talked about thoroughly before the relationship gets too involved & then someone is hurt badly or disappointed (as in the case where one partner doesn't want children & the other does), etc.

Money is another important topic to talk about.

If a value is important to you, don't compromise yourself. If it doesn't matter so much to you then you can choose to accommodate his desires.

But I would very carefully figure out what YOU really need/want in a relationship. You sound a little iffy to me that this is OK w/you. Sometimes "love" is not enough for a relationship to work.

Take care...