So basically, me and my best friend were having a normal convo a few days ago when (I assume) she misunderstood something I had said and accused me of being passive aggressive and wanting to argue. She also said that she is not surprised but disappointed. I quickly apologised and said, "I really sorry you got the wrong idea, I didn't mean to be passive aggressive at all. She pretty much repeated what she said to which I responded, "I am really sorry I was genuinely just worried, you seem to be upset about something, lets talk after a few days." I just wanted her to cool down. She didn't respond to this message but wished me best of luck 3 days after this conversation for a surgery I had. When she messaged me I shared that I was really hurt about what she had said and that I would like to talk about why she would think I would want to be hurtful to her, considering we're best friends.  She responded to this by saying that we will talk about this later. I requested that I would prefer if we talk about it as soon as possible because this has been causing me a lot of anxiety and effecting my sleep at this point. I also said that this is not meant to be a confrontation, I am aware she goes through a lot on daily basis and would like to understand better because I would hate to be the person to make her life any harder. She responded to this by saying, " I am really behind on my work, can't do it now. If you're not able to cope with your anxiety, I'd suggest seeking help." This message was really blunt for someone like her and obviously was meant to be hurtful, considering I have supported her through multiple of her emotional crisises, taking her phone calls really late at night as well. So I blocked her as I found this to be really disrespectful. 

Was it wrong of me to request that we resolve our issue sooner than later? It had already been 3 days and I thought it was okay to ask considering we are really close. Can you guys help me out by providing an outside perspective? What should I do?