Most Helpful Guy
well, the guy you know since September is someone you know longer.. and you decided to stop talking to him. You don't know if the new guy is more or less interesting than the old one because you didn't know him for so long.
So what do we know: Old guy isn't interesting enough to you, that he made you still showing interest in having a conversation with him for 2 whole months (we have march). So wether there is a new guy or no, this was going nowhere anyways.
New guy is new, so its a new opportunity to find the person that you can't stop caring about.
I'd go with the new guy.0THIS IS NOT RELEVANT ANYMORE