AITAH for telling my gf I won’t move in with her because her rent demands are unreasonable?

A person on Reddit is considering cohabitating with his girlfriend, who possesses a residence and is actively paying off her mortgage. While they are mutually interested in living together, she is firm on the condition that he contributes rent equivalent to the prevailing market value of her property, which is twice the amount he is presently paying for his existing apartment.
He acknowledges her desire to retain the house; however, he thinks the proposed sum is too high and not something he’s willing to pay. He would only have access to a single room, not the whole house. The situation has reached a standstill. Is he being unfair, or is his girlfriend asking for too much rent?
‘ AITAH for telling my gf I won’t move in with her because her rent demands are unreasonable?’
My girlfriend and I have been in a relationship for some time now. I earn a decent salary, but she owns a home and is currently paying off the mortgage. We talked about cohabitating, but she’s hesitant to include me on her mortgage, despite our plans to marry in the future.
I said it’s fine, and I get it, this is her house and she’s been dealing with it for years now. But obviously I don’t want to be a kept man. I currently rent a place, and it’s relatively decent for the price. Anyway, we were making calculations and her demand on my “rent” for her is twice as much as what I pay for my own place.
That’s absurd, I said. She argues that’s the going rental rate for her property (which isn’t wrong), but I countered that only applies when the owner isn’t living there, and I’m only looking to rent a single room, if anything.
I COULD afford it, if I don’t save as much, but it’d too close for comfort. She says I’m just making excuses, and I told her I’m not gonna be paying that much. She insists she really wants to live together, but she said I need to pull my own weight.
Here’s how people reacted to the post:
Thistime232 − NTA. So she wants you to pay what fair market rental value would be for the ENTIRE house? Even though she’d be living there as well? If she started with half of the fair market rental value, since you’d be sharing the place, that could be a starting point to discuss things, but her current stance is so incredibly unfair I don’t even think I’d want to have that discussion with her if I was you.
EconomicsWorking6508 − This sounds odd. You are right to question her pricing strategy and even her motivation. Proceed with caution. NTA.
Mother_Search3350 − She wants you to pay her mortgage. If it’s that high, you could buy your own home and put that money in a mortgage for a property in your name.
SuzCoffeeBean − NTA I’d find that very off putting.
mainsailstoneworks − Market rate for rent is not the same as what someone needs to make ends meet on a mortgage. NTA. This is weird to me. Being uncomfortable with adding you to a mortgage I get, but this seems like she’s trying to keep you at arms length while using your relationship to help her pay off a mortgage.
Fredredphooey − NTA. When two people move in together, they usually split it 50/50 or prorate it if one person makes a lot more money than the other.
She should be asking for half the mortgage and half the utilities. To gouge you by trying to charge you the cost of renting her entire house on your own is absolutely ridiculous.
It doesn’t look good for her perception of your shared financial path. Inquire about the “rent” amount if you were married. But in all honesty, if someone attempted such blatant financial exploitation, I would end the relationship. I could never attempt to gain financially from my significant other, which is precisely what she is doing.
New_Day684 − Tell her you’ll pay that amount when she moves out so then it’s fair market value.
Dashqu − NTA keep your appartment until you are ready to marry. Doubling your rent so you can live together in her house, while her costs go waaaaaay down? No thank you.
IndependenceOk7128 − If my girl told me this I’d seriously tell her imagine if the shoe was on the other foot? You’re her partner, not her tenant.
Sensitive-Ask-9368 − Did you just feel that bullet whiz past your head, need to dodge the next one. You are her ATM.
What are your opinions? Should he provide rent at the current market rate to reside with her, or are her expectations unreasonable? How would you manage rent payments if you were cohabitating with a significant other who is a homeowner? Please provide your insights and personal stories!