wondering why my house mate behaves like a Halfback,

...trying to get away with anything!

I'm afraid Sean is trying to det me up.

He continually invades my personal space.

He continually calls ma by derogative names. (accentuating vowels to some extreme sound.)

I'm doing my best to satisfy his demands, but I'm also losing patience.

Even after I have explained my position, he prefers , it seems, to use that as an admission of defeat/guilt or of compliance).

I'm at a loss ...

What do I do?