Is it bad that I showed affection to a former partner recently?
Why did you show affection to your former partner?
I missed how nice she would smell and wanted to see her again.
I can understand natural attraction, but it's expected that you leave your past relationships behind. You could be causing a lot of drama for yourself.
Am I not allowed to show affection?
I think that showing affection towards your former partner will only complicate things. I'm sure you broke up for a good reason. I think it would be best if you tried to forget about her, and move on with your life.