<human>: Well I've been with my girlfriend for a little over 2 years now. We have a great relationship - we get along well, treat each other great, healthy sex life, etc.  
  
The problem is, I just can't stop freaking out (in my head). It seems whenever I get to the ~2 year mark in a relationship, I begin freaking out about commitment and how I've been with this person for so long.  
  
I don't want to get married to my girlfriend, but I do love her and care for her deeply. I don't want to get married at all at this point in my life. I've been open with her about this and it doesn't seem to be an issue as she isn't interested in marriage either at this point. Am I wrong to be in a relationship that won't lead to marriage?  
  
Am I silly for obsessing about this and not just enjoying our time together? There are no problems with our relationship other than my feelings of uncertainty. I feel like if I broke up with her, I'd be throwing away a wonderful relationship with a great girl.  
  
At this point in my life, should I only be staying in a relationship that I feel will head towards marriage? Am I freaking out for no reason? Can anyone give me some insight?

Can you give me a shortened version of the text?
<bot>: I'm in a great relationship but have been stressing it a lot lately because  don't know where it is going. Help?