<human>: My girlfriend (21) and I (22) have been going out for about 1 and a half years and have been friends for about 8.  In my relationship before her (which were about a month apart) I cheated on my ex.  I felt terrible about it and didn't tell any of my friends because I didn't want to be judged.  The girl who I cheated with was my best friend at my school (who my other friends don't personally know...they don't go to my school, including my current gf).  After being with my current girlfriend for a few months I told her about my past relationship and it turned into a huge shitstorm because I was still friends with the girl I cheated with.  I eventually broke off the friendship to save the relationship.  

Fast forward to now (during this fast forward there had been many fights about me lying to her about it and that I didn't readily want to stop being the other girls friend).  The other girl had IMed me or texted me every blue moon and when she does I respond and the conversations are usually short and not very deep, but my girlfriend hates it and says she doesn't want me talking to her.  I feel like this is a trust issue in that I am not trying to have a deep relationship with the other girl and the only time we talk is when she contacts me.  I don't think I should have to be mean or lie because my girlfriend doesn't trust me talking to her.

Give me a shortened version of the text
<bot>: I fucked up with my ex and my current girlfriend doesn't trust me when I talk to that girl through IM every few months.