Obsessing over my behavior towards my best friend.

I love my friend so much, but I can't stop looking back on my past with her and realizing I've either had inappropriate behavior towards her, or have potentially done something bad and can't remember if that was my intention. Once, she turned on her camera to let me see her dog and I believe accidentally flashed me. Disgustingly, I tried to shoot my shot and asked her repeatedly to turn her camera back on. I have since realized that this might have been coercion and I can't cope with it. Then, once, while we were swimming, she yanked me close to her and I accidentally pressed my hand against her chest. I apologized, but now I'm convinced that I meant to do it and even tried doing it again. I don't know what my intentions were. Beyond this has just been numerous moments where I make comments that I shouldn't, try to engage in sexual things when she hasn't felt quite ready to. A specific thing I worry about is how many times I've video called her while she's at home barely wearing clothes and it feels like that's the only reason why I would do it. I had tried talking to her about it recently, and wasn't able to talk about any specific things out of fear I'd create new problems. But I at least told her that I was horribly afraid that I had harmed her in every possible way, sexually. To which she responded that I hadn't done anything of the sort, and she said that she had been groped while we were in highschool and she'd remember if I had done something like that. She tells me that I'm such a good friend to her, that she feels safe around me and is becoming more and more comfortable with sexual topics around me. She even says I'm very respectful in regards to sexual things. I've tried cutting her out of my life before because I'm so afraid I've wronged her, and that just ends up hurting her more. She just begs me to stay in her life despite how many horrible things I feel I've done to her. I'm so tired of being on the phone with her and feeling undeserving of her. Every time I speak to her my brain reminds me of what I've done/may have done and I just feel like I have to run away from her.