Why is my ex being nice to me?

[Anonymous]

My ex is being nice to me lately at work. We get along and and she is not showing signs that she is annoyed with me. We worked together alone the other day. She also laughs when I make jokes. I don't know why she is acting like this. She recently became a manager so she needs to be nice. Or maybe she likes me or wants to be friends again or she just want to get along, I don't know. Please help. Thank you.

[MrsTurkleton]

It takes a lot of energy to have animosity towards someone.
it’s much easier to get along.
After a while, everything becomes water under the bridge

[Iron_Man]

Maybe she likes you again