<human>: Can you provide a brief rundown of the text in within 3 sentences?

My BF and I have known each other for 3 years and we've always had a thing for each other. A month ago we started dating. 

He is a pretty touchy-feely kind of guy, and I'm not that way at all. The only people I touch beyond a quick hug are people I'm dating. We went to a party together this weekend and at one point I saw him and his female friend stand back to back and stick their asses out to touch. It really bothered me and I needed to go take a walk.

At another point at the party, another female friend of his jumped up on him and wrapped her legs around him for a recently long time and it also really bothered me.

He's a very understanding guy and said that he sees why it upsets me, and he wants to talk about setting reasonable boundaries with each other. I guess I just really don't understand why someone would need to be physically close to someone like that if they're not dating. I fully trust him so I don't know why this bothers me so much.

I want to know how I can deal with this. I want to be able to not get irritated if he is physically close with another girl. Any advice?
<bot>: Bf is a touchy feely kind of person, I am not. Something bad goes off in my head when I see him touching other girls in certain ways. How do I get over this?