<human>: Summarize the given text in a few sentences.

My boyfriend and I have been together for 3 years. He's a very outgoing, true-to-himself, social guy - which is great! Except that he doesn't seem to really be very aware of his surroundings and the people in it.  

He constantly interrupts, talks over people and makes everything about him. He's basically a big know-it-all. Like if someone is telling a story, he'll interrupt and talk about how the topic relates to him or he'll explain something he knows about in relation to the topic instead of just letting the person talk.  

For example, if someone was to tell a story about a helicopter, he would jump in and explain in detail how a helicopter works while the other person is trying to tell the story.    

Another big thing is that he also doesn't really respect people's property. For example, if someone has their phone on the table, he'll grab it without asking and start looking at it while asking the owner questions about it. It's not that he's being destructive or malicious, it's that he just grabs and touches things without asking.     

He's not doing it on purpose to be an ass, he's a genuinely good guy, I think he just doesn't realize how the way he acts is pretty annoying.       

  It can get really frustrating because, to be totally truthful, I find I'm on edge when we go out with other people because of how he dominates the conversation so much. I get really uncomfortable.  However, nobody has ever really commented on it, so maybe I'm the only one who takes issue with it?      

Am I being way too prissy about this and just let him be himself?
<bot>: my boyfriend is kind of a know-it-all but I don't know if I'm just being hypersensitive or if I should try to explain it to him.