He becomes more withdrawn from friends and family
He actively avoids talking about himself and changes the subject if people try to ask. Other than a generic “doing ok” or equivalent, he will conspicuously avoid talking about any of his personal life (unless you can get him onto a topic like a hobby that he’s really into. But general personal life / relationship stuff? That’s often a no-go).
1. Make it difficult for you to meet/connect/spend time with family or friends and will repeatedly make critical comments (to isolate you)
2. They don’t respect your boundaries. And they subtly push them until you find yourself tolerating things you would usually run for the hills for