I don't mind if my family members eat meat in front of me, but when they continue to comment on how tasty the poor little animal is :| they do it as a joke, but sometimes i feel like punching them for eating those little animals! haha
I have family that eat meat and I don't mind, but I know what you mean ....
I've got a carnivorous cousin (really, he eats that much meat he could be) and I know he tries to be annoying by asking stupid questions, throwing insults or stupid comments about my veg*nism and it gets me fired up.
Or even how my family continually offers me dairy or something along those lines where they know I can't eat it but they ask anyway... (I mean you could say they were just trying to be nice, but after nearly 3 years, you'd think they would have gotten it by now?)
Though now days I just laugh it off, or ignore... and concentrate my efforts on something worth while, since I know a lost cause when I see one :]