What is a scenario where you would be in a abusive relationship?

If you were in a situation where in which you met someone who became very close friends with you, or started dating you. They slowly isolated you from your family and friends. They would make offhand comments about a friend of yours, or mention something a sibling did. They would make you feel like you could trust them and only them. But then they would do things that you question and ask them about. That's when the manipulation starts even worse. Gaslighting and lying, leaving you after every conversation feeling like the bad guy. They get you to do what they want and you're unhappy, and you don't even realize there's something wrong with the relationship as it slowly eats away at your self esteem.

Explanation:

I'm not sure if this is what you're looking for, but I've done quite a bit of research on manipulative abusive relationships because I never want to be in one or for my friends to be in one. If anyone thinks I mixed something up or gotten something wrong I'll be happy to fix it!

obviously, the latter.