Can you make sense out of this relationship issue?

What about if you've been cheated on, and you find yourself becoming possessive because of that trust issue? Can time not heal all wounds? What if she's being told how bad of a boyfriend you are to her b/c of your possessive nature that stemmed from some cheating incidents? How do you justify this? How do you fix the issue if your relationship is on the brink? I guess i could fit the stereotypical possessive/obsessive type, and we've talked about it...but it seems to be the main issue for some reason...And sorry carries no weight anymore...as opposed to a break up..b/c there is love still between us...what can you do to resolve the issue?