text: No probably not.  He's probably not happy with his current relationship or its lacking in some way and he's searching for you to fill that gap.  He may not be wanting sex, but he's definitely interested in something selfish.  Otherwise he wouldn't be putting himself in such a bad situation to hurt his current girlfriend.  Besides, would you want to be friends with someone that had those kind of values?  I mean he does have a girlfriend, and now he's going to his ex to be friends?  pretty shady if you ask me.