Search Results: getting over, cheating boyfriend

I probably shouldn't be deciding the fate of my relationship over the Internet but I'm confused. Don't get me wrong, I love my boyfriend. We have been dating for nearly 6 months now, both 18. He always says he loves me and tells me I'm beautiful however when we go out on dates he just stares at other girls like tonight he spent 45% of the night staring at all the waitress girls. Even when we were talking. I'm getting annoyed over this cause he always does it plus once we made a pact that we both agree it's considered cheating if we either look, or think about someone else (boy for me/girl for him). Furthermore, he has met both my parents and he spends so much time at my house but, I have never met his parents, they probably wouldn't even know about me if it wasn't for his sister telling them. I don't know when is the good time to meet the parents but still. Also, whenever we go out he's all lovey and cuddly with me but when we see a family member of his or someone we both know, he'll let go of me and look away as though we both don't know each other. It's so annoying. He does this continuously and as much I love him I don't want a relationship like that? Any advice. I'm honestly right now thinking about putting it off