Its time to prove everyone wrong.

So my bf and I are moving in together and on the phone with his mum who isnt happy at all. She is convinved he will not survive and make it on his own and come running back to her. She makes every excuse like oh you need to paint first or do it up before you move in. The home is perfectly fine she just doesnt like it cos its not super posh and up to her standard. Have no idea how im going to deal with this narcissistic woman.