I think I am going to criticize my boyfriend's gross house.
Is there something wrong with his house that makes you want to criticize it?
Because it's such an ugly home.  I want to live in a beautiful house.
You should try to be more respectful of your boyfriend's property, even if it is not to your liking.  You can criticize any genuine problems, but if it is just a matter of opinion, then you should accept that this is the home that your boyfriend has made.
Mhmm, I guess.
Cool. Plus, the fact that he has a house is great! There are tons of people out there that are renting or have a ton of roommates, and your boyfriend has neither!