My boyfriend and I were so much in love until he thinks that I was cheating on him. I had talk to male co workers, just at work, saying hi and a little talk. After work, no contact. He does not trust me at all and he constantly think that I am cheating. I don’t consider co workers as love affairs but he does not see it that way. How can I make our relationship last without him thinking I am a cheater? Fyi..3 year and a half relationship