Should I completely break up with my boyfriend?

Okay.. here’s the juice.. :)
I have been dating my ’‘boyfriend’’ for about 7 months. I’m not sure if we’re boyfriend, girlfriend even though he says we are, I surely do not feel that way. He’s very unreliable and I am constantly left behind, wondering what he’s doing etc..
Now, last week he said he was going to go on a trip with his friends.. ’‘friends I don’t know’’. I was sad, because it was my last week before I went on a vacation. He said he would text me all the time. He did not text me once.
I didn’t even know he was back until i saw him today at the gym. I acted like i did not see him, but i’m sure he saw me.
I have never slept with him or anything, so sometimes I even wonder why he wants to date me in the first place. He’s shady and it’s really starting to annoy me. I do not want to get hurt and I want to end it because I really like him.