If a new account asking you to go first on a transaction isn't sketchy enough, then you (speaking generally, not to you OP) are silly. This is common sense: don't trust a complete stranger. It becomes even worse when someone trusts a stranger nobody else around knows either. And knowing the Bitcoin transactions are irreversible.. what could go wrong, right?
The problem is that people nowadays can get easily derived by words and promises, they are allowing the scammers to take advantage of that opportunity to deceive them. It's the reason why they need to be enlighten how they can secure their funds from it. They must realize that they can't trust and believe anyone except themselves because you can't easily identify a person's real intention. There is a huge possibility that they are just looking for an opportunity to get the benefits they wanted from you that's why we need to be aware of such incidents to remind and guide ourselves.