Am I a bad person ? Holding guilt.

My girlfriend and I broke up about 6 months ago, partially due to a lot of differences in religious views, I felt very judged and we could never hang out alone and there wasnt much communication. I started to develop feelings for my bestfriend so I ended the relationship. I didn't exactly want to pursue a relationship with my friend instantly but foolishly I told them how I felt when I was single, and we hooked up a few times. I told her I wasnt ready for a relationship and still loved my ex, and quickly realized after a few hookups that I couldnt do that anymore because she had feelings for me and wanted more. We stopped hanging out and I sorted out my feelings, I realized I wanted to work on mysekf and fix things with my ex. We are back together thankfully and we have been much more communative, we have both improved a lot but here is my issue.. She knows I hooked up with this friend but not that I had feelings for her. Its been 6 months since that ended and I no longer speak to this friend. Should I have told her this or is what she knows enough? I feel guilty but I also dont want her to feel insecure because she has forgiven me for the hookup and wants to move forward - I dont want her to find out elsewhere, i also feel like I lied by not being as forthcoming.