<human>: I think I need to break up with my GF. We're not going to get married for a variety of reasons, and we're not getting any younger. I know there's no standard breakup for the "we aren't going to get married, so let's just call it quits" but I'd appreciate any advice from someone who's gone through this type of situation on either the giving or receiving end. 

Some info:

* We live together (I pay most of the rent)
* We have a dog together (though she's under my name)
* We've bought a couch together
* We live in a major city and I worry that she won't be able to financially support herself for very long.
* I don't have anyone in mind to start dating
* Our lease is up in May, but I'd like to start the talk before then

Reasons:

* My family and her do not get along at all (one major reason)
* She doesn't want to travel (important to me before I settle down)
* I live a very social lifestyle that she can't keep up with
* We have general contempt in our relationship due to jealousy and insecurity

I could continue dating her casually for another year, but I know in the end I'd just be wasting both of our time.

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: My girlfriend and I are not going to get married, I think we should break up but I'm not sure how/when/where to do it.