We used to be colleagues at work, but one day he stopped showing up to work, so I never saw him again. Back then, he used to have a gf, and he never showed interest in me, or looked at me in a particular way, we would just talk, and he was super sweet. On the last day when I was off to another country I just told him bye and that it was nice to meet him via social sites. I'll be back in December (like 9 months from now) and he tells me that he wants to take me out, that he would like to show me the places around and stuff. Should I believe what he is saying? like during that whole month we didn't even speak. All his saying it's all of a sudden, and he has recently broken up with his gf. What should I think about this?