Gf has been distant lately, I would say 'I love you' to her as we're getting off the phone, and yesterday she'd just finish back with 'You too' instead of her usual full response. Getting tired of this distance and constant 'you can't do anything right' attitude, which reflects both onto her and onto me.

I don't want to be a douche, but she said 'Love you' this morning via text, and I kinda just want to respond with 'ditto' or 'You too', just to throw it back in her face.

Should I, or just be the consistent person I wish to be and give her the full monty "love you too" response?