Pls help--confused and fearful

[Day by Day]

I'm wondering if this is coincidence or not about H's abrupt change to nastiness. H and I were writing politely back and forth about exams and he asked me I was still at the same school. During that last MC session, I mentioned I was changing majors and he had a snarky comment as it figures I would change.

Once I mentioned in the email that I was excited about the new career, he responded that he wasn't paying for it. Then he followed with more about not supporting me anymore and I need to get a job. I'm thinking I was making future plans without him and he didn't like it. D13 also posted on FB that she was having fun making smores in the fireplace and having hot chocolate and decorating the tree with me. Then another nasty email. Coincidence??