OMG! that was a huge factor in how I let this one friendship that ended a few month ago get so intense and take over about all my friendship energy. She has had multiple surgeries and I was one of her helpers. Then after 2 years or so I really needed a friend for a few things and she didn't have any energy. Unfortunately I had put all my limited energy into one friendship, and I really really couldn't feel like I dumped her. I tried to back off when she said she needed more time and space, but she had a serious mental health crisis a few months before that and I got scared, kept checking in on her until she pulled the plug in an angry way. The last time she asked for everyone to give her space I did, texted every couple days to once a week something encouraging with no expectation of response, available in case she needed something, didn't worry about her, and found out she went to a hospital as suicidal. It is not easy to figure out how to do this is what I ended up learning.