Anorexic kitty

Someone help me: I think I may have just adopted a stuck-up cat. His owner told me he only eats wild turkey with gravy cat food, and it has to be 'Dine' brand. And as for dry food, he only eats roast chicken flavoured. Maybe he doesn't like fish, which is weird. This pedigreed blue Scottish Fold cat is way more stuck up and picky than my old, common domestic short hair ginger tabby cat. I mean, my old kitty used to eat everything. And I mean everything. Anyway, several things happened today:
-He used his litter tray. Finally! And I didn't even have to show him where the bathroom was, he just knew it was his to pee in!
-He used his scratching post like 3 times. He's really really cute when he uses his scratching post. But he doesn't like me creeping on him, so I haven't had the chance to take a video. I'm quite amazed that he knew it was his to scratch on, too. It's a new one from the shop, and he just automatically started scratching on it after napping time.
-I have a pet bed for him, but he ignores it despite it having his own scent (from the mat in his carrier). His favourite spot to sleep is on a chair pushed into the farthest corner of the dining table where we can't reach him. I suppose that will be his bed from now on. If we are too noisy, he slowly walks out (he is a very slow and curious cat) and he walks (slowly) to his secondary resting spot: somewhere under one of the two beds in the bedroom we don't use (we can never find him when he's in that room), where he's less likely to be disturbed by noise.
-My mum had this huge red mosquito-bite looking thing on her shoulder today that she claims is from the cat. I kind of pretended that it's impossibly for the kitty to have fleas because he got the medication when he was little, but obviously it's not impossible. Either that or my mum's allergic, even though she hasn't touched him since yesterday when she first met him. I think it'll have to be like a month before I know for sure I can keep Bodhi. He'll have to be purring for me by then and my mum will have to not be allergic. I hope he can trust me. He doesn't let me anywhere near him (he hisses) and his tail still twitches which means he's anxious. Poor kitty, his owner put him up for adoption after 5 years because some toddler liked to tug on his tail.

Hope all goes well :) Oh and by the way he has barely eaten anything. Like, 3 cat biscuits and that's it for 24 hours. Ignored the 'Dine' turkey I put out for him. I hope I have NOT adopted an anorexic kitty. I mean Felix eats like crazy, and so did my old cat, and so did the stray cats in China!

Update: He finally ate a tiny bit of the cat food. It's the first time I've seen a cat not eagerly wolfing down its food. Remember his favourite spot under the dining table? Well he decided to hop on top of the table instead to reach the window. He was pretty cute, resting 2 of his paws on the windowsill and staring out into the backyard. Until he saw my neighbour watering plants with a hose, and then he freaked and ran back into his own little room. My mum is being annoyingly paranoid about the 'dirty' cat. The living room and bedroom (except for the bedroom we don't use) doors stay closed at all times so he can't get in. Luckily he's not a cheeky cat. I opened my room door a bit and he just stuck in his head to look, but didn't go in. He's cute when he's deciding where to go, he lifts one paw up off the ground when he pauses in his walking. My mum was also paranoid about him hopping onto the table, and now she's freaking because Bodhi's a bit more comfortable in his bedroom (where we try not to disturb him) and he's resting on top of the bed instead of under it. Which I personally think its good because he's not that scared anymore and he's much cleaner there than under the bed. I'm still scared to touch him, though, in case he hisses at me again. He's quite relaxed (it's dark but I'm assuming he is resting in a relaxed manner). My mum shoved his pet bed next to him but he will not go on it. He prefers to sleep in the tiny space between the outside of his bed and the railing. I don't know if I've mentioned this but he's obsessed with his scratching post. Maybe its the thrill of having a new one. But when he comes out, he's bold enough to go straight into the kitchen and have a scratch right in front of us. He's done it 5 times already. He is a very, very quiet kitty. If he meows, it's very soft. I did some research on the breed and Scottish Folds are meant to be very placid, affectionate, independent and quiet. So I guess that's good, one less thing that won't annoy my mum if he's not the type that meows constantly.