Gosh, a lot to catch up on. I do appreciate the perspectives of both sides of it. I think estrangement hurts on both sides, even when one side has chosen it. I can see that my parents are starting to see that I have pulled back and knowing they are having feelings about that pains me. At the same time, last night I was thinking about how my mother feels about me not calling and realised I had to resist the old pattern of being responsible for her difficult feelings. It's easy for me to think mother upset I haven't called = call her to let her know I care and make her feel better. No, she has done something that affects the relationship and I'm not going to smooth things over this time. I have to let her feel how she feels and worry about how I feel this time.
No relationship is perfect. I think, for me, it's less about the one incident and more lots of different incidences of being trampled that have done it. The incident that triggered my response here is probably relatively minor but it's like the last straw that resulted in something flipping in me.
I do understand why a parent might not want to go back once an estranged child comes back. It's risky and they're probably emotionally drained enough that they just can't give it the energy. Maybe a bit how I'm feeling at the moment.
I don't think these things happen without reason. We probably just have different thresholds for where it happens. We have different coping styles and communication styles, some which are more productive or detrimental than others. One reason I choose to talk about it here is that I am good at second guessing myself (a side effect of always being told my feelings and needs were wrong as a child), so I value other input. It helps me consider things.
I think we can all agree that we all want to have good parent-child bonds. When we don't have that, it hurts.