It is great to be introspective and want to identify any potentially toxic traits we may have. In this instance, you wrote that you loved them. You told them exactly how you felt about them. If you were intentionally acting a certain way only to act completely differently later on, that would be a different story.
It’s difficult when it’s people who live near you and work with you. You seem to be on the right path with saving up to move somewhere else. Negative people only take away from what little energy we should be directing towards ourselves. When you do leave they’ll realize they have nothing else and nobody else to blame but their own selves