if it hurts, if it crosses your mind and it brings you back to dark place, if it makes you sad, it's valid. idgaf how big or small it is, those feelings are real. give them the space to be acknowledged.
sometimes people come back and apologize but it means nothing. they haven’t changed, they just want to convince you that they’ve changed so you can let them back in and they can sink their teeth into you to hurt you again.