Met this guy at a party a few weeks ago. Do you think he's interested in me?

We chatted for a couple of hours and he was really nice. He asked me if I was dating anyone and I explained that I don't date now. He couldn't understand. He said 'you're really nice' and told me I look mid 30s even though I am in my mid 40s. Anyhow my room mate explained to him that I am afraid of getting hurt, after many disappointments. Then he said 'I think you're playing a game'. Anyhow he contacted me by chat since and my room mate met him by chance and he was asking about me. He invited me to a party through my friend. Went last night & you know what? He directed most of his attention at another firend (a girl). Then when he had a few drinks he said to me 'I think you really are interested in guys because you talk about them'. He just acted like he preferred the other girl. Do you think he is interested in me?