Right vs Best

I am in a sticky conumdrum. There is a situation in my life, about which I'm going to be unusually vague, that is really perplexing me. There are the things I know to be true, versus the things I can prove are true. The things I can prove do not warrant action, but the things I know do. There is also the question of what is right and is what's right what's best for all involved. I'm really struggling with how to handle. Sorry for being so cryptic and vague, but until I decide how to proceed it's necessary...