Need Advice About Roommate Rental Situation

<p>My boyfriend and I share a 2 bedroom apartment with one other person. Before I moved in a couple months ago, my boyfriend and his friend from work shared the rent amount 50/50. Since I moved in (my boyfriend and I share one room, while our roommate has his own room- the exact same size as ours and we all share one bathroom) our roommate has decided that it’s only fair for him to pay a 1/3 of the rent. However, he has his own room, while we share the other (both the same size). While I do agree that we should pay a little more than him, I disagree that we should have to pay 2/3 the rent, while he only pays 1/3 rent for 1/2 of the bedrooms! We share utilities 3 ways which only makes sense, but I think it’s preposterous for him only pay 1/3 of rent when he is occupying half of the bedrooms. The total amount for rent is $650.00. Our roommate only pays $216 while my partner and I pay $434. This is a sticky situation as our roommate and my boyfriend are also coworkers. I only want whats fair, and would like some support as to our decision. Thanks! :)</p>