<human>: Can you provide a brief rundown of the text in within 3 sentences?

I've 'dated' guys, hooked up with guys, etc. but it's never become something 'serious'. 

I'm not unattractive... I get called 'pretty/hot/sexy/attractive' a lot. (I'm not being conceited, I just don't think that's the issue) and I get asked out a decent amount: waiting in line at the bank, costco, at work, bars, school, etc. Honestly I reject about 90% of the guys who try, not because I'm shallow. If I am slightly attracted to someone I will give them a couple dates, but without a spark I just can't keep going.

But the few guys I have felt that chemistry, never stick around. My longest 'relationship' lasted 3 months, a couple others lasted about 2. But at some point they seem to change their mind and leave. And they never ask to be 'official', they'll do ALL the stuff boyfriends do, but refuse to 'label' it, all for different 'reasons'. I realize that I constantly like 'emotionally unavailable' guys and I'm not sure why.

But at 26 I'm so tired of this. I want to be in a serious relationship. I want to experience it. But like right now I've been 'seeing' this guy for 2 months now and he wants to be a couple, but I don't want to. I don't trust him and there's no 'connection', it's purely physical and I'm lonely. So am I the reason it's like this? Is it subconscious? Or am I supposed to just 'settle' on someone I don't truly like?
<bot>: I've dated guys (never serious though), I get asked out (but rarely find myself attracted to many of them) and I'm still always single. What am I doing wrong?