If my father retired from the Air Force, what kind of care does the VA provide for them?

my father retired from the Air Force I know he qualifies for benefits but it gets confusing finding just what he can get and if my mom qualifies being his spouse. I talked with a facility and they tell me he could have long term care but not mom. I will not separate them unless mom has no clue who he is. They have been together almost 70 years I will not keep them apart no matter what. so what does the VA provide for care for them? I need money to hire extra help or a place them both in a facility together it is so expensive and my parents don't have assets that would help them for very long. Thanks all