Hey Missy   I guess the first question that comes to mind is...are you truly over your ex-boyfriend?  It seems as though the new guy was only good when compared with your ex and when you broke up with your boyfriend, then the new guy wasn't as wonderful.    When you suffer from depression it is easy to get into the predicament of looking for something or someone to give you an emotional lift.  What better lift can you get than falling for someone?  I am thinking that with this new guy...the attraction was probably that he was new and that it was more infatuation.  That might feel good for awhile but then time passes and reality sets in and you are left looking for the something or someone else to give you those great feelings again.   Remember that song, Addicted to Love?    It is understandable that if you feel depressed that you want to feel good again. Infatuation can temporarily make the melancholy go away but it doesn't last and it usually isn't rooted in reality.   What would it be like to take a break from boyfriends and relationships and allow yourself to feel whatever you feel?   Think about what sort of relationship you really do want.  You are in control.    I am not a therapist or anything.  These are just my rambling thoughts.  Maybe others can chime in with their ideas.  Thank you for your question.