Can I get some input on Long Term Relationships?

I’ve had a few serious relationships, the first one started my senior year in high school, and ended about 4 months after I moved 2 hours away for college.

I was really into her, and traveled every weekend to see her, but it just fell apart. And now, it seems anyone I date, I get bored in the relationship and feel as if I’m wasting her time, is that normal? Have I just not found the right person for me?

I’m told I’m too particular with who I date (though, I will say, I do like attractive women, at times I find some women attractive where as others may not and vice versa) I’m always known for being single, and I really want to find that person for me.

It’s already happening again, about 4 months into a relationship, and I already feel like breaking up and moving on.

I’ve learned that dating sites don’t work out well, always a false representation of who that person may actually be, and I feel like a jerk if I’m not interested and they are, and we never talk again.

Anyone with some good input, like where to meet women and so on. I’m all ears =)