Serious answer, Sab.
If you expect to have emotinal intimacy you have to understand that sexual relationships outside of a monogamous one precludes that. Yes, you will hear many espousing open relationships can be healthy, workable, or perfectly intimate, but that is all either a lie or a justification to excuse themselves from true emotional intimacy. The truth is that even if those who accept open relationships believe that they have gained some state of emotional intimacy, it is just a pale comparison to the real thing.
Look, I'm not going into any issue about homosexuality, casual sex, or the root causes for people who wall themselves off from each other. Those are discussions for another time if they haven't been done fifty million times here already in the past. Those things are not the point.
However, the real point is that that bond you are seeking is missing-- and will continue to be missed --as long as one of the critical components to a truely satisfying relationship is not there. All other things aside, having sexual contact outside of a committed relationship simply drains the emotional effort and energy that is necessary for that intimacy to occur.
Both you and your love interest need to acknowledge this if you ever have any hope of achieving what you desire.
Totem