My sister-in-law, who I have known for more than 10 years, since her brother and I were dating and been married, uses another photographer for all her photos.>>SNIP>>
OK. Go. tell me to suck it up and stop being such a whiner. I know. I need to hear it.
Here, let me call a whaaaambulance for you, mmmkay? Must be tough. Maybe someday she'll switch? I would try to keep this from bothering me if I were you; judging by the way she talks about it, she sounds like a real passive-aggressive bi-atch type of sister-in-law. She's probably doing this deliberately, just to needle you. By worrying about it, you're playing right into her hands. If I were you, I would play this a little bit more cagey, and would start suggesting other photographers to her, with comments like, "You should have Stuart Superior do your next family photos--he's sooooooo talented.Oh, but you probably can't afford him though. Hmmm, maybe you should call and see if you could get a booking with Sally Spencer Photos...no, wait, she's probably too expensive for you too....hmmm. I KNOW!!! You might be able to get a booking with Randy Fai-san, he's that hot new Vietnamese photog in town....oh....but you probably don't like Vietnamese people, do you...hmmmm...well, anyway, I was just thinking maybe you ought to try some shots with one of the high-end people in town.Not that your guy is not good or anything, but, you know..."
Seriously---I would start making some subtle psychological warfare remarks like those above. You sister-in-law sounds like a first class bi-atch to me. If she's going to constantly keep bringing this chit up, then you SISTER, need to start fighting fire with fire, and put her in her place with some subtle innuendo about not being able to AFFORD a BETTER shooter!!!
"Fire, I'd like you to meet fire!"