I have been fooling around with a coworker for probably a month and a half now. We both know it can never develop into anything as in a dating relationship. He's super nice but I know he's a player and I have no feelings for him. We get on fine at work but recently he seems to be more open about his personal life with me. He has serious conversations and vents to me one on one and has shared his past. I respect him and don't plan on betraying his trust but is it possible he's getting attached emotionally to me? Advice?