You need to set some new parameters with her. If you are regularly too tired to talk after work, then make an agreement that you won't talk after work. Or make an agreement that you will talk if you're awake but not if you're exhausted. Part of that agreement involves her accepting that it's a matter of practicality and it's not that you're mad at her.
I too am wondering how old she is. This is not unexpected behaviour for an insecure teenage girl. But a grown woman should be able to talk things like this through and find as solution (as above) without getting all insecure and making it about her.
Never regret anything that has happened in your life. It cannot be changed, forgotten or undone. So, take it as a lesson learned and move on.