Tinder match asked me to invest in crypto — is this a scam?

Yes. With near certainty. The script you're describing — dating-app match, move to WhatsApp, mentor energy, crypto introduction — is the canonical pig-butchering opener. You're being run through a playbook that has worked on tens of thousands of people. Disengage now. You have not yet lost money, which puts you in the small minority who escape.

Do not confront them — they'll switch to a different victim and the operation continues. Just stop replying, block, and report the profile to Tinder. If you want to be useful, screenshot everything and submit it to the FBI's IC3 portal so the wallet addresses they've shown you go into law-enforcement databases.