<human>: Can you provide a brief rundown of the text in within 3 sentences?

So this is going to be long and its going to get complicated so strap in.  I've been dating my girlfriend for just over a year.  We have had so many ups and downs and if we aren't having an argument daily then we at least have one once a week.  I moved in with her and her mother because I ran into some roommate trouble and got the hell out of Dodge.  Neither of us like her mother and have been looking for months for our own place.  I pulled some strings with a family friend and he is offering us a place!  Well the thing is, idk if we should live together any more. The arguing is near nonstop and I'm constantly at odds with her.  Now the two complicated things.  Complication 1.) Money, I have a lot of monthly payments for my age and living in this apartment alone is going to kill me financially.  To stay afloat I'm talking a second job, more hours at my normal job, and probably weekly plasma donations.  I'd find somewhere else but this is the cheapest place around.  But with my girlfriend there it would half what I spend on the place and I could comfortably live.  Complication 2.) Even though we have been together for over a year, I never got over my high-school sweetheart.  My ex moved away for a job and long distance didn't work.  Our lifestyles were very different anyway and idk if we would have made it but recently my ex got a hold of me and told me she would be moving home in a couple months.  We admitted we still have feelings for each other, hoping it would bring some kind of closure but it just rekindled the fire.  Her and I aren't talking until she comes home because I feel guilty talking to her when I'm already in a relationship.  So what should I do?  I know this was a lot to take in so I'll add detail in comments as necessary.
<bot>: Girlfriend and I fight, need her for rent and I want things to get better, but I still have feelings for my ex.