A client(23/24M) sent flowers and chocolate for me(19F) to my work. I’m not sure how to respond.

It’s a very nice gesture, especially considering I love flowers and coincidentally my favorite kind are included in the bouquet (carnations), but I’m not sure how to respond. It came with a little message on the card that reads a bit more than a simple ‘thank you’.

The message reads: “Eternally grateful to the most patient, kind, and respectful [my position at work] I have ever met. Thank you for being so gentle and composed, you truly deserve the name [my name] -Client

I really appreciated it and it made me blush but in a confused way. Reading it, I thought that it came from my boyfriend at first until I read who it was signed by. My coworker and my boss kept making jokes about how he’s young and well-off (I work for an insurance company, we handle his dad’s construction company). I literally only talked to him once on the phone yesterday and it felt like a regular conversation. We’ve never seen each other in person.

I’m not sure what to do or how to take it. Should I call and say thank you or is that inappropriate? Am I misreading it as a romantic gesture? I’m not used to this

TLDR; male client had flowers and chocolate delivered to my work and the message read like a romantic gesture that I thought it was my boyfriend who sent them to me. I really liked the flowers but I’m feeling confused

EDIT: I just looked up the local shop they came from and he spent 50 DOLLARS ON THESE, NOT INCLUDING DELIVERY


Follow up:
So it was indeed a romantic gesture. I come in later for work and he had left a message asking me to a local flower garden show.

He came in the next day (yes he came in two days in a row to see if he could catch me) and we managed to meet for the first time. He told me that he was “surprised to find out” that I’m black. Which wasn’t weird because the insurance agency I work for specifically has a strong tie to the Polish community so he also rightfully assumed I was also Polish. He then said that I speak surprisingly eloquently.

Sorry, but saying that as a follow up to finding out that I’m black is about one of the stupidest things you could say.

I promptly rejected him and that’s the end of that.

TLDR; he was disappointed that I’m black and said that I speak “surprisingly eloquently” as a follow up