<human>: Could you distill the essence of the text into 1-3 sentences?

Girl meets boy online. Mutual interest ensues. Both acknowledge they want a LTR and have been talking for nearly a month. 

Here's the catch: he just told me that he doesn't want a LTR. He says he's bad at them and this will probably end in a few months max, even though he isn't planning on it. He said he gets bored of being in a relationship, dumps the girl, and then gets bored of being single and looks for a new girl. This has happened a few times. He posted initially for a short-lasting romance and didn't expect to like me, but I guess he does now. We've decided to just go with the flow and have a date set up in a few days. 

Is this a bad idea? I feel like I should have some self-respect and just leave the situation, but I do like him. He likes me too, but maybe he isn't mature enough for a LTR. I don't know what to do. I feel like maybe this time will be different, but I don't want to be that girl who thinks she can change a guy. We live a couple hours apart, and even he says that if that weren't the case, he'd probably think it'd work out.  

FWIW, he did turn down another girl he knew irl because of our thing. Maybe he's just a poor decision maker. WHAT DO I DO?
<bot>: Guy says he's bad at LTR and to expect the worst. Should I just bail? Or am I just setting myself up for heartache later?