Love / In love with a Polish mother [4]

I'm sharing a house with a family from poland for nearly two years in uk. I fall in love with the mom of four children. she is kind of woman every guy wish for. she is beautiful, caring, hard working. Her husband behave very rudely with her most of the time and i feel sorry. I always wish if she was my wife but i know it's impossible.

at the same time a polish girl fall in love with me. i like her alot but bit confused now. I've fallen for the mother and love her more then my girlfriend.

what can i do?

I can't get rid of the mother from my mind
and also can't tell my girlfriend about her.