1. Aww, I'm sure he doesn't hate you! You're a very nice, kind, and pretty young lady! Any guy would be lucky to have you, and if he can't see that, shame on him! That's one person with no taste lol. Anyways, as for this new guy, try and talk to him! There's nothing really wrong with liking two guys at once (I mean, sure, it's not always ideal, but it's fine!)! Go for it, girl!
2. Just whenever this girl comes to your group, just try and be friendly, but most importantly, yourself! Try and initiate some small talk.
3. Ahh, I remember those days, trying to get my mum to let me buy a phone... Honestly, I would just be straight forward with them. I'm not really sure on this topic...
Best of luck! :)