<human>: Provide a brief overview of the text.

My girlfriend of 4 years and I recently broke up (3-4 weeks ago). It was a very "nice" break up - we both decided that we weren't happy as individuals and hence couldn't be happy in the relationship anymore. The few people I have spoken to about this have sort of indicated that it's a bit of a stupid reason to break up, but it makes sense to me? Anyway I still love her very much and everything, and in an ideal world we would get back together once we both worked on our own happiness. We are in slight contact, we take it in turns to contact each other - we don't speak about what we are doing in regards to other guys/girls we just chat and ask how the other is going. 

On saturday night I met a girl and she is awesome, and I know she is keen to hang out/sexy times but I am really not sure of where my head is at with all of this. I like talking to her for the companionship, so lonely :( but I am not really sure if its fair on either my ex or her if I continue. This new girl broke up with her boyfriend of 9 months in january. I am seeing a psychologist at the moment and she says that I have a few issues in the way I think about things, e.g. when I was in a relationship I would feel bad if I talked to a new girl just in a friendly way. Anyway I dont want to make it complicated and would enjoy the company, just not sure of the ethics, and best course of action. Any help internet strangers would be very much appreciated.
<bot>: Girlfriend and I broke up, we hope to get back together at some point, we have no plans to at the moment however. New girl in the picture, but I dont want anything serious - what do??