Should I stay or go now !?

I have been with my husband for 37 years, married for 35. He has always been moody and sometimes sounds very aggressive, we had 3 children together but it seems they all cut contact with us because of him. He is disabled and in a lot of pain due to an accident 28 years ago but does that justify his blunt rude manner and uncaring way towards me? He's not interested in anything I say or want to do. Any thoughts gratefully received.