Cutting off parents

I came out to my very Catholic family 7 months ago and since then my parents have told me that I have chosen an evil lifestyle and my relationship with my partner is disordered. They have become fanatical and it has caused huge strain on my relationship with my partner. My parents say they love me and want me to visit them but my partner means nothing. They don't want me being gay. I'm 31 years old and just want to move on. i am thinking of cutting off communication with my parents because they stress is too much. Any advice?