You said you only want sex if you are in a commited relationship. Are you? I understand wanting monogamous commited relationship but were you really ready to make commitment to this guy who you don’t think is right for you? I don’t think you need to commit to someone you aren’t even sure about. Are you in love? Is he? Then why commiting? It’s established that he is not commited to you (yet?) but are you? And why? If you have many doubts?