Dumped by my Pisces today...

I’m in total shock... we’ve been dating 4 years and living together 2yrs. Out of the blue today he told me he wanted to move out. We had planned to spend today together working on home projects since we are both off. I don’t understand what’s going on... I’m trying to wrap my mind around it. I don’t know what happened, he seemed perfectly happy. He treats me very well and always has and we get along great and hardly fight. We have disagreements but it never turns into much. He said he can’t be himself around me and so I said well if you haven’t been yourself then who have I been dating?! He has not once brought up being unhappy! At least not overall. He told me he was moving out and I asked if he was breaking up with me and he decided so. I’ve been upset all day and now he’s being wishy washy about being together but saying he needs space. I don’t want to be strung along.

I am a bit of a wreck... he has already started moving out and he’s very decided on that part. I’m not sure how to proceed. This is truly heartbreaking, I love him so much... I don’t know what I did.