My [25 M] girlfriend's [23 F] mom [50ish F ] bought a condo for her daughter, wants me to pay half rent?

Background:

I've been dating my girlfriend for over a year now, and she has been living with me for around 7-8 months rent free. During her time living with me I always paid the entire rent + utilities + groceries expenses, and I never asked her to pay anything for the living expenses since she moved into my apartment and since I make way more than her. Last thing to mention is that my girlfriend is from another culture than mine, and in her culture the guy is supposed to own a house before marrying the girl. As I type this post my gf and her mom are sleeping on my bed while I have been sleeping on the couch for the past 2 weeks as her mom is visiting (not once have I complained). Gf mom and I get along alright, though we dont speak the same language so there is a language barrier. Gf parents are wealthy and apparently did not take any loan when buying the condo.

Now done with the background:

My girlfriend's mom bought an alright condo recently. During gf's family buying process, I wasn't really involved in the buying decision other than me seeing the apt once before buying and saying it was alright. I didn't really know what their thought process was for the apt as there is a language barrier and I was busy with work during the time and didn't think they would actually buy the place (they look at apts to buy all the time). The apt is objectively better than my current place, but its not at the side of town i'd want to live at.

So pretty much I ask my gf what the rent situation is going to be and she says that her mom asked the realtor and got a price quote of about $800 more than what I currently pay for rent, and then she tells my gf that she is doing me a favor by asking me to pay half of the rent.

I got upset by that comment when my gf told me that as I do not see that as a favor at all, and told my gf such. I dont think shes doing me a favor because a) if i were to choose somewhere to live i wouldnt pick that place b) If gf were to pay half of rent somewhere else I would be paying alot cheaper at another apt c) shes making money off me via rent.

Gf got upset with me and started crying. I asked my gf why her mom was buying the condo and she said it was because gf is staying in the city as she's with me. I'm not really convinced that it was for us but more so for her?

I'm not really sure how I feel about the situation so looking for advice from reddit. From a purely objective perspective, I think its fair that I pay half rent to my landlord and gf pays other half. But considering that the landlord is my gf's mom (who stays at my current apt "rent-free" whenever she travels to the city) and my gf who never has paid rent to me, I don't think its a fair arrangement.

TL;DR - Gf mom bought a condo and wants me to pay half rent, and I don't feel right about the arrangement.

Submitted July 23, 2019 at 08:49AM by okonkwo__ https://ift.tt/2y7pQd2