Dearest Alice, the sudden change in his stance and feelings must have been a real shock to your system, especially when everything seemed just fine and you were planning a trip together. No wonder you couldn't eat, sleep etc.

If he's in a euphoric period, he is going to also experience a crash, in which case, as someone else said, he may try to come back to you.

Yes, the heart wants what the heart wants and often does not match what our heads tell us. DO be careful with this one. He was abrupt and quickly changed his mind. He can just as quickly change his mind again. That's a yo-yo effect on you, emotionally. Who needs that? My ex did the same to me, but I stayed with him and got burned badly in the end. (((((((Hugs))))))