Amber Hollingsworth discusses causes of codependency in a short YouTube video. She notes insecure (anxious) attachment from early childhood and a deep fear of abandonment as key psychological roots, and explains this can lead people to over-self-sacrifice to try to keep relationships.
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Why do you keep doing this? What does it come down to? It could be a number of things, actually. When I was doing a little research on the topic, somebody said that codependency comes from insecure attachment or anxious. Attachment is another word for that, which could be true for sure. But I was thinking it's really a bigger problem than that. If you're not familiar with what insecure attachment is, it has to do with, like, early childhood development. It has to do with the way you attach to people. If you kind of have like a fear of losing people or a fear of abandonment, that would be the kind of thing that we're talking about here. And so if you have that deep down fear that someone's going to leave, you're going to lose someone, you may overly self sacrifice thinking that that's going to keep that relationship for you.