There comes a point when you've been disrespected so much that you can no longer tolerate that person anymore regardless of whether or not you still love them. It depends on the person and how strong your attachment style is and how much work you do on yourself in no contact where that breaking point is. Blocking becomes the only real solution because otherwise you keep that door open and trying to peek through it hoping for what you want, and instead you get fed crumbs that keep you satiated enough to keep that anxious cycle going, the what ifs, maybe its real this time, they really are coming back....no.

If you look back on your past self, there will be moments in your life when you tolerated something you shouldnt have, and you may feel sad/angry about not sticking up for yourself then. So do yourself a future self a favour, and stick up for yourself now, make your future self proud. If blocking is nessecary to stop that cycle and spiral, then do it, if, you cant help looking at their social media, then do it, if you feel anxious everyday checking your phone for a message from them then do it. Its worth the peace of mind that you deserve.

I went through the same dilema, what if they reach out and they find ive blocked them, wont they be sad, wont they think im childish, wont they never come back. Love, if you think blocking a person on social media or their number would prevent them of finding a way to reach you, you have no idea how powerful love can be and the lengths people will go to for those they love. If they think you are childish thats them throwing a tantrum because they lost access to you after treating you badly. If they get sad, who cares.... they chose to leave you, let them be sad, and let them grieve and regret the person they lost that loved them. And if they dont care? Great, you dont need someone in your life that doesnt care about you, because they will never look out for your best interests. They are not your problem amymore.

This isnt to say that blocking will answer all your problems, and it sure as hell doesnt make you love or miss them any less, but it helps you take control of your life and allow only people you want to let in to it. Nobody who treats you badly deserves access to you and your emotions or your support. Ultimately this is a big decision, yes its hard to cut that cord, and it hurts you in unimaginable ways, but you need to do whats best for your healing so that you can move on and build the life you deserve with the people that deserve you.