Can I decide not to visit my best friends first?
Why don't you want to visit your friend?
My priorities are to stab my best friends in the back
Your friends would not appreciate you wanting to stab them in the back. You should try and understand why you have these feelings and want to cause your friends distress.
I don't need to get involved with that, I'm writing a condolence letter.
Avoiding your friends does not seem like the best way to deal with the issue long term. It may allow you to simply feel better short term which is not a great idea.