text: how can i make a guy who i left come back to me, even though he has a girl friend now? i am a lady. i was seeing this guy but we were not officially dating. it went on for approximately a month. i couldn't keep up with his demands, i.e. the things he wanted me to and so i decided to leave the relationship. now i want him back but he has a girl friend. try to make him jealous everytime you see him try to look better than anyone around you