It's always acceptable to be protective of your partner, but going too far is a big NO. You might observe that your partner tries to monitor everything you do during the day and prevents you from making decisions on your own.
They will make an effort to persuade you that, out of pure love, they are only attempting to shield you from unfortunate events and horrible individuals.
Being socially isolated and being an introvert are two separate things. If your partner forbids you from socialising with others and prevents you from doing so,
then the likelihood that they are a member of the latter group is great. A person who is socially isolated won't make any effort to interact with others and will just seek your attention.
Your partner doesn't trust you and wants to take total control of your life if they restrict your access to your pals, your phone, change your social media passwords, etc.
This is an almost unrecognisable form of emotional abuse. Your partner should never attempt to control your behaviour.
A big warning sign that your relationship is abusive is when they hurt you physically or punish you.
It is obvious that you should take fast action to ensure your safety if they cause you pain or rage while they are upset.
If your partner acts normally after taking such dramatic measures, you may want to reconsider your decision to stay in the relationship.
You might also observe that, in the interim, their affection for you has grown without even an apology.