<human>: Give me the gist of the text in a nutshell

My girlfriend of 1.5 years has recently started to get this marriage fever. Our relationship started out fairly tumultuous and we ended up having to go through therapy because she had some baggage that she drug me through for quite a while. 

Anyway, the last few months have been much better in our relationship, but now she has decided that we need to practice living with each other to see if we could actually live with each other. I've told her that I'm just not there yet and that I'm not ready to be married. Her idea is that we spend the night at each others house everyday for a few months to see if it's doable. 

I've told her it just doesn't mesh with the things that I need in life right now and that I need some time with friends and for work. She basically gets really upset and says that I don't care about her and that I don't love her if I don't do this. How do I handle this?
<bot>: Girlfriend wants to "practice living with each other" to see if we can actually live with each other and I'm just not ready for that.