<human>: Can you succinctly summarize the text in 1-3 sentences?

I moved into my GF's place after a few months of dating. I know this seems rushed but it was really done out of financial practicality as we both coincidentally landed new jobs at roughly the same time in roughly the same new place. 

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We both work similar hours (8:30-4:30). I see her every evening after work. Neither of us are particularly social so we usually stay home, have dinner together, watch tv, and walk my dog. 

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Most Saturdays and Sundays, (about 75% of them), I will go home to my mom's place and spend time with her. 

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My father is abusive towards my mother and their finances are spiraling out of control. I feel like I am the only thing my mother has in her life. I feel like she needs my support and company.

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My GF is unhappy about me leaving on saturdays/sundays and wants me to spend more time with her on weekends. 

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Of course, I understand my girlfriend's concern. I guess you could equate my behaviour to a momma's boy. Are my priorities wrong?

I suppose i just can't tell which of us is being unreasonable. The way I look at it is like this, if a month has 30 days, 22 of those days will be with my gf. Isn't that enough? It's not like we have a child together or something.
<bot>: I live with my gf but visit my parents most weekends. My gf doesnt want me to visit them as much.