It took me forever to realize that boundaries aren't something meant to be processed with those I'm setting them with. But they are meant to be shared, when appropriate, to create emotional safety for yourself and potentially others. Over explanation, however, is often seen as an invitation to not respect your boundary. You're essentially saying — hey, I'm unclear about what I want or need, so l'm going to let you decide for me. That's not a boundary… it's likely codependency.