My gf is vegan too.

But she is very nice to me, never ask me to be vegan, and even we have meal together, she even wouldn't mind if I bring her to KFC, she will just eat french fries/cheesy wedges/salad or take out the meat slice for me when she ordered burger at McDonald's.

Second time when we visited my mum together, my mum forgot she is vegan and cook almost all dishes with meat, my mum was so panic and wanted to cook veges, but she just being nice and told my mum don't worry, she can mix the rice with gravy. So my mum likes her very much and treated her as her daughter.