Need some advice for a female friend. Can you help?

I have a really good friendthat came to me for advice today. Lets call him Kelly. Kelly came to me for some advice about his current girlfriend, Jena. They have been bickering and getting into fights over stupid stuff. According to Kelly, his girl is being a leech in the relationship. and that Jena never goes out of the way to do anything for my friend. Jena rarely asks Kelly to go out and when it does happen Jena expects Kelly to pay all the time. Even when Jena insist that they go out and do something together. I did not know how to answer her on this. They have been living together for about 2 years. Kelly is saying that he does not want to be with her anymore. but does want to be with her becouse he loves her to death.Does anyone have any idea what I should say to him?