I kissed a girl at the club a day before I made it official with my gf
Why would you kiss someone else?
I felt like it was the right thing to do
I'm sure your girlfriend would be upset if she found out. When you are in a relationship, it is expected that you remain faithful and committed. You shouldn't let this happen again.
It was just a kiss, why does she have to get so upset.
A kiss is considered cheating to some people, and it would make your girlfriend really sad if she found out.