Just move forward. Keep your cell with you, unless you're upset with him (that will stop you from reacting). The things that he loved about you in the beginning, but are different now, change back completely. That's a 180.
The detaching actually comes along with that. When you are attached, you look for him to make you happy. When you are detached, you look to yourself to make you happy. You still care about him and his point of view. His reaction doesn't ruin your day. It ISN'T the same as indifference. When you are indifferent....his good reaction can't even make your day.
So work out, eat healthy. Be confident (fake it til you make it). Enjoy yourself. Do things that make you happy.
