I dare not ask her for it. But my friend knows the girl next to her. What if the phone calls now? Send her a message. Send what? And have a boyfriend. I ...

I took the liberty of asking for her telephone number (it's better not to say who gave it to me).

What's the purpose of sending her this message? I hope so. What?

Think of it this way. . . .

Example:

Hello, Xifeng, I'm the landlord. I got your number from Sister Furong after many twists and turns, and took the liberty to send you a short message, because I really want to know you. Maybe you've met me, too I am someone's friend, where we met.

It may be a little abrupt, I hope you don't resent it, and I hope you can give me a chance to get to know each other.