<human>: Can you succinctly summarize the text in 1-3 sentences?

I recently started seeing this guy (side note: he's 20 and i'm 25, I usually don't date younger guys) and the first date was awkward, of course, and I didn't really feel much of a "spark," as it were. I decided to give him a second chance because he was really nice, though not as attractive as his pictures online would indicate. I also forgot my wallet the first date (I'm really disorganized and forget important stuff all the time, it was really embarrassing though. I was polite enough to be a cheap date though :P) so I figured I owed him a second date where I would pay. 

The second date REALLY dragged on, I realized how boring of a person he is and that we didn't have anything in common. He also became instantly clingy at this point. It was nearly impossible to end the date. He has text me constantly since wanting to hang out again, I did cave once and went to dinner with him, afterwords we made out a little and he is a TERRIBLE kisser. I have been very short with him lately, like only responding to his texts with short answers (and often several hours later), but I don't want to be mean to the poor kid, he's REALLY into me, saying things like "you're so amazing" etc. I'm really trying to figure out how to go about this with grace and it's really difficult.
<bot>: I tried dating this guy, but he is unattractive, boring, a bad kisser, and we have nothing in common. He has grown attached and I don't know how to end it without being mean.