Then dont say bye. Being polite is not going to win her back at this moment. I am friendly and civil with my W when I see her. I always have my PMA, I smile, I joke. But I dont tell her bye. I tell the kids I love them if I am leaving them with her. I say bye to them.
If she is not saying bye and ignores you, and you are constantly standing there saying bye to a brick wall, it may very well come across as pursuing. You can be friendly, you can be upbeat, and you can wear a big smile. Remember, you want her to know you are going to be ok with out her. You are moving on with your life and you are happy. And she will wonder why...
Me: 42 W: 32 Married 7 years together 8.5 S1: 7 S2:7 Bomb #1: 09-16-13 Recon #1: 11/13 A discovered 04-03-2014 W filed D 05-19-14 but never served me I filed D 12-02-2014 S 05-31-14 Divorced 5-19-16