Welcome to NeuroTalk. Relationships with a brain injured person can be tough. Your GF's opinion is not uncommon. I suggest you read the bottom of the Vitamins sticky at the top. It lists two or three online resources for you to look into. The "You Look Great" YouTube video series is a must plus the TBI Survival Guide is full of good information.

Has your BF had a NeuroPsych Assessment ? If he has, you need to read the report so you can understand what his functions and dysfunctions are. It is common for TBI people to have a hard time forming deep emotional relationships. Some struggle with expressing any kind of emotions. Depression is not uncommon.

We have had a few on NT who were in relationships with TBI individuals. I don't know of any offhand right now.

Keep asking questions and hopefully we can help you understand.

My best to you.