Is my boyfriend using me?

Ok so he bought a house for $195K

It’s a 2 master bedroom house

So I share a room with my boyfriend and we are renting the other room to his friend

Well me and his friend are paying $650 each a month

The mortgage is $1128 and it’s a townhouse out in the middle of no where so the water bill and power bill and everything else is $330

Does this seem fair to you?

That I am paying $650 a month?

My bf pays about $150 a month

He refuses for me to pay less because he bought the house and put a 16k down payment

My parents are upset about this