Help Me

I honestly am in a toxic friendship. I keep feeling afraid of what to say or even joke about because this person tends to get offended very easy. Today she insists that I humiliated then even though we (in a group of friends) were talking about the issues we were having with one another. I wasn't involved, but I wanted to stick up for myself, and all the issues I had with them. They insist I humiliated them afterwards, even though as a whole we were all humiliated.