My girlfriend bought me a mobile phone.

If you intend to pay her back, don't let her buy it.

Just say your mobile phone still works!

Why are boyfriends and girlfriends so good?

You can accept her gift,

Wait until you have money to repay her!

You pay her 500 yuan every month, isn't that what your parents gave you?

So, you make her pay, and then you're performing. ...

I hope it will help you, and I hope to adopt my answer. Thank you!