After 5 months of NC I met my ex accidentely in the pub. I had to walk passed him and I only wanted to say hello and leave it with that, but he really made an effort of turning around and star a conversation with me. I kept it really happy, but short. Later when his new girlfriend put her arms around him he looked very sad. My friend said he was keeping an eye on me all the time he was there. Could it mean something?