I think my family is falling apart
Do you think it's your fault?
I'm the only one trying to keep this relationship together
That sounds overwhelming. Your heart is in the right place, but it would be better you all got into family counseling.
Nah, I'm fine and they should be able to fix their own problems
But it would be very supportive of you if you went too. Plus, you would be able to say your side of the story and how you think all their fighting makes you feel.