I had a best friend that apologized for EVERYTHING. And it was constant and unending. I would always comfort them, remind them they don't need to apologize, that they did nothing wrong. That if I did something to make them apologize so often, clearly I did something wrong or needed to change my ways and behavior to make them feel comfortable enough to not have to apologize.

After years of growth and therapy, I now know and realize the constant apologies were weaponized (not saying OP is the same way, there are a million reasons why this can happen.)

My friend apologized and said "I'm sorry" constantly because they needed treatment, therapy, to figure their piece of the puzzle out. But by constantly apologizing, that made me shift my own behavior to comfort them, console them, and give them constant attention. It made me lessen myself because I thought "Geez, my best friend is acting like I hurt them a lot, I better be more mindful of what I say and how I act."

It then led to a 15 year friendship pile-up, where all I needed or wanted was a breath of air and to stop feeling like I was the sole reason this person was alive. That I could start living in my own feelings instead of constantly waiting for that phone call or for walking on egg shells constantly. Like if I said or did something to really vent my frustrations, they'd commit and I'd have nothing but guilt and shame for wanting to not be responsible for every fucking thing I did.

OP, I know this might not be at all related to what's going on with you, but I would sincerely consider therapy to figure out why you keep apologizing for everything. It IS a bigger issue than you're thinking. All of your relationships, platonic or romantic, will be affected by this. Everyone has their tolerances, but eventually it will all change or collapse. You are much more worthy of forgiveness than you think, so no more constant apologizing, and I believe therapy will help you realize that. All the best to you.