I have been in the relationship for a few years now. It was the most difficult one ever. We decided to try and make things work, but it is much more difficult than what I've imagined.
And one big challenge for me it is to deal with my BF's father. He's a strange man.
To be honest he never teated me bad, but he does weird things, and they drive me crazy:

He is very racist. He has no repeat for black people and keeps calling names like "monkey" and "baboon". Considering the fact that half of my family is black, I feel sick and can't say nothing or my BF will get very upset.
He's very spoiled and feels like his wife has to do everything to make him happy and comfortable. He doesn't offer her any help. She's like his maid.
He is obsessed in using my bathroom. When they come to our place, we give them the suite with the master bathroom to make them more comfortable. There are two other bathroom, one that I always use and the other one my BF uses when they're there. His dad know it, but he always goes to mine. I also caught him going through my things (make-up box, etc.). It makes me so mad because he leaves drops of pee and everything wet for me to clean it.
My BF has the same pattern of behavior as his dad, but yet not so bad. I'm afraid it is just question of time, and he will become the same.
I'm seriously thinking of braking up before it is too late. I'm so sad