I Need Serious Help or Advice...

So there's this guy I've known my whole life, our parents were like family and we grew up together. However, a few years ago when we were teenagers and didn't see each other as much, when we did it was like alone or at parties. And well that's when he started getting into wedgies... Like I know it's a childish thing but apparently it's also a major kink for some people. But i never want to think that because he's like a brother to me.

Well anyways last night was my first night seeing him in over 2 years (because he's in the military) and of course, he gave me a wedgie, which literally tore my underwear. After that he just kept hugging me and saying he missed me and stuff and I didn't think anything of the wedgie, I thought it was just him taunting me like when we were younger and I was just glad to see him. But when he texted me later on he said if I sent him a picture of the damage and he saw it was bad he'd send me a new pair. So when I said it'd be a few minutes he said just take a mirror selfie. A mirror selfie of me in my torn, literally no coverage, underwear to a guy who calls me his sister and I call him my brother...

I honestly don't know what to think, he always taunted and messed with me when we were younger but has it grown to something more? Is he attracted to me?

Can I please get opinions on what you think he wants or why he's done/he did what he has and what he said?