How do i deal with flirty women?

I have a hard time dealing with seeing females talk and laugh with my bf. It really does make me angry. I try not to be that girlfriend that gets mad at him about it. But when i see females playfully touch his arm i always tell the female to chill out and then i tell him to stop letting girls touch him. He tells me im tripping and that he doesnt let ppl touch him. But today it was me him and my homegirl we were all laughn having a casual conversation and we bust out laughn at something another guy said and she leans up against him and laughs super hard and i was on the other side of the counter. I know she didnt mean nothing by it. But she is a very flirty girl and im not comfortable with her around my bf. I trust my man. He comes home to me. But i just have never trusted women. How can i better deal with these emotions. I just wish hed stop letting females touch him. My other friend was sqeezing his muscles but this was before she even knew we were together and he let her. And it wasnt until i told him to stop letting her do that , that he finally told her stop. I need to get rid of this anger because i do not want to make a big deal out of it with him because itll turn into an arguement and he will start saying i dont trust him. I trust him i just dont like females friendly with him. But i know he loves me and would never do anything to hurt me. I juat hate seeing it smh. Thanks ladies in advance!! Please no rude comments.