My boyfriend said that you can die if u get the chickenpox 2times in your lifetime is this true?

Absolutely NOT: Chicken pox is a congtageous disease. Once you have the chicken pox, you should be immune. One could get chickenpox and have a rare complication, such as chicken pox pneumonia and possibly die from the complications but this would be extremely rare. One could be immunosuppressed (transplant patient and such) and contract zoster and die from complications. But not, not in general.

Chickenpox: Most often a person is immune after getting a chickenpox infection (but not always). Unless a person develops a serious complication, then the chances of death are very low. People with weak immune systems & adults are more likely to have complications.