So over a year ago I went on a couple of dates with this guy, we went on a night out together and I ended up sleeping with him and staying at his that night. We talked for a few weeks after that but nothing else really happened between us and then he said 'he wasn't sure he wanted a relationship' and 'he is head wasn't in the right place' so we stopped talking. The last couple of months he's messaged me quite bit and when I try and end the conversation he'll try his hardest to keep it going. He's mentioned today about meeting up when I'm free and if I want to and I didn't really give a definite answer, just kinda 'yeah maybe'. He's not really my type and I don't see us going anywhere, if I'm honest I was only ever with him as a rebound and I'm not interested in seeing him again like that, but I don't know how to let him down gently? I've got nothing but respect for him, he was a complete gentleman and seeing how he treated me was the only reason I never went back to my ex, which I'm massively grateful about, so I don't want to hurt his feelings or be rude but I don't know how to get the message across that I don't like him like that? What do I say to him?!