Have you communicated this to your partner/How do you feel about communicating this to your partner? I think we all deserve to be in relationships with people that bring us up, not down. I’ve had a similar past experience. The only actions you can control are your own, and it may be the case that this person does not realize the effect their negativity is having on you-which may be why you are conflicted about staying or leaving. Communicating this doesn’t have to be about a blame game. Communication is a vital tool in ANY type of healthy relationship, and your emotions and feelings are both valid and important.