You need to train yourself not to be jealous when you don't have to be. This is one of those situations. I get a lot of compliments and advances from men. In person I NEVER flirt. Online I might respond in a sweeter way, but these guys are a few thousand miles away from me.
My BF always says "he just wants to get in your pants"

, but he's never made a problem. We are in a LDR so the trust just has to be there. We both go dancing separately and although I was very jealous at the beginning of him dancing with other women, with time I realized it was just dancing and if he wanted to be with someone else, he wouldn't have wasted his time with me and if he wanted to cheat on me, he could easily tell me that he is going to sleep and actually sleep with someone.
So the point is: when our guys are near women, we instinctively feel that they are a threat for our relationship. I suppose the root of this fear lies in the far past where we were almost animals (for thousands of years) and where basically "available and near" meant "he'll have sex with her."
It's an animalistic survival instinct so learn to ignore it. By making jealous scenes you will just scare him off and seem clingy and emotionally dependent on him. On the contrary, show him that he is free and he will appreciate you more. The less you're jealous of him the more he is jealous of you.