Transfer from roobet to binance

I’ve been in a long-distance relationship with my bf for about 3y. He’s very into crypto and has some funds on Roobet. Just lately, he has been insisting (already for a couple of months I can say) that he needs to ship me cash by tipping me on Roobet, then having me withdraw it to my very own Binance account, and eventually switch it to my checking account. This feels strange to me, and I don’t understand why he gained’t simply make a traditional bank switch. I’m in Europe and he’s in Asia, so I need to be cautious. What are the risks of doing this? Would I've to pay taxes on the money I withdraw from Binance? Is this technique legit, or might it's a rip-off?