Yeah I think the issue is that she agrees with Damon and Bonnie who both have said that they are willing to do whatever it takes to save her life which HAS to be hard to hear because you can't just really be like 'Oh ok, sounds like a plan'
And then I felt SOOOO bad for Jeremy because here he has to choose between seeing ANOTHER GF and close friend die or his sister and you can't really choose that without some sense of guilt.
IDK why they haven't thought to bring other witches in on this or to at least ask about the best plan of attack (like Lucy).