Splitting on my therapist and friend

I split on my therapist last night. I do think I needed to find a new therapist to help me with some things my previous one couldn't help with (like coping skills, safety skills, dissociative disorders, BPD, mental illness), but I also probably shouldn't have just emailed them out of nowhere and said I'm discontinuing therapy. I know having a conversation with them about if we could have adjusted something or if I needed to find care with someone else would have been better, but last night that felt like way too much and I just needed it to be over so I split on them. I've been kind of in a crisis and I tend to split on people. I'm also kind of splitting on one of my newer friends, but trying not to. What do you do when you split on someone? Should I still talk to my therapist? Is it okay if I split on them if I kind of needed to leave anyways?