Caps are SO suspicious!

I met this cap guy 3 months ago and yes, I'm his new victim. My cap guy is very suspicious. I mean RIDICULOUSLY suspicious. A few instances would be where we would hang out alone together and I remember I pulled out my chap stick. He stops and stares and asks, " What are you doing?", as if he thought I was going to lay one on him. Yeah, right. Just know it was awkward. Another time was when I went to grab something that was near his jacket. He quickly jumped up, " What are you doing over there with my jacket?" I was getting my keys. I guess he thought I was going to rob him or something. He doesn't even like me walking behind him.

Are most of you Caps suspicious like this one?
And is it common for you guys to always ask us non-caps, "What are you doing?" Every conversation we've had starts off with him saying, "What are you doing?" Does it matter what I'm doing?

I forgot to add that this was in the beginning. He was only like this in the first month. After that he let go and warmed up. It all should be in past tense. My mistake.

Get used to it if he thinks your hidding something he will get worse.. Keep NOOOO secrets. make your life very open for him. He will calm down.