<human>: I am 27 F that has been in really bad relationships in the past.  I am currently in a relationship with a man (30's/M) I love for almost 3 years now.  We have broken up in the past and it's really hard for me.  I get jealous when he talks to other girls, sometimes I feel I am more a convenience than anything.  I stay at home and go to school full time (most of it is online).  I have a little girl and he helps out with her.  He's a great person, but I don't know how to get past all the jealousy and fear that he is going to leave me, even though he tells me he could never.

Can you condense the text into three sentences or less?
<bot>: I (27/F) have a low self-esteem, super jealous and afraid SO will leave me for another girl, how do I fix these issues?