It's not that you don't love them, but it's the fact that you know that there will never be the same love between you ever again...that what hurts the most.
But I don't want to live that way, reading into every word you say. You said that you could let it go and I wouldn't catch you hung up on "somebody that you used to know"
It hurts at the very first, you'll question your decisions. You'll know what depression feels like. But at the very end you'll realize that you've actually got rid of all the toxicity, and you'll realize that the person that used to make you feel that way is actually worthless.