To start Dstepson and I get on very well. He is a great kid, very easy going, kind, funny and I love him to bits.
He is a veggie (me, dp and dd eat meat) which is cool, is no problem cooking him veggie versions of chilli, cottage pie etc, always cook for him at the same time as the rest of us. Make separate cheese sauces because I know he can't eat parmesan etc. And keep a stock of loads of Linda Mccartney veggie crap in the freezer for his snacks.
Now, his girlfriend came round for dinner. I cooked them portobello mushrooms and the rest of us chicken breasts. They had the same side dishes as us.
Dstepson and girlfriend wanted to eat upstairs (so they could be all lovey dovey probably ) Collected their dinner went upstairs, then dstepson came back and asked if the mushrooms were cooked at the same time as the chicken. Which it was; same shelf of the oven, in different dishes obviously. His girlfriend then refused to eat the dinner because it was cooked in the same oven as meat.
Now am I being completely clueless about this - I thought it would be fine (especially has dstepson has never mentioned it before). But I think it's nonsense and she was rude to refuse to eat on this basis. Also a bit pissed off with dstepson. What do other veggies do? AIBU?