Would you defend a friend being harassed online or stay silent?

I'm ashamed of myself, because a dear friend of mine has been being harassed and I just stand by and let it happen. What really hurts, is she thinks the world of me and admires me a great deal, because of that, I hope she doesn't lose any respect for me. What are your thoughts? Would you defend a friend on here? If a friend didn't defend you, would you lose respect for them?

Updates
4 mo
Don't delete my reply, you pussy lol because I'll delete your opinion. Don't troll if you can't take your own medicine.
Would you defend a friend being harassed online or stay silent?
Post Opinion