Originally Posted by Akuei
I'm having anxiety attack for the past hours and I really want to tell her that I'm hurt by this action. Or should I go guns blazing and let it (emotions, resentments, etc) rip?
Dear Akuei,

GIFT - (Noun) - Something that is bestowed voluntarily and without compensation.

It seems like you expected "compensation" for this gift--even if it was as simple as her accepting a "wedding anniversary present" when she's told you she's no longer your wife. That sounds more like a covert contract than a gift. Yes, work out your anger, hurt, disappointment, etc.--on a stress ball, on a treadmill, on a mountain top. The marriage is over. Yelling at her doesn't make sense. She told you it was over years ago. It also doesn't do anything positive for your co-parenting relationship.

Originally Posted by Akuei
The guilt comes from the fact that she gave me a birthday present earlier this year I would like to reciprocate it
Imagine this is anyone else. You asked them to lend you $20. They give you $20. You ask for their address to pay them back and they say forget about it. Would you feel guilty?

Originally Posted by Akuei
I also want to tell her to let me know what her plans are so we can move on.
She's implementing her plan in front of you. You want her to choose you or move out--but you don't control her. You only control yourself and whether you choose to continue this way or move on.