The young man received a short message video from his girlfriend.

Oh, dear! I think there may be two situations:

First: it may be that your girlfriend's best friend played with your girlfriend and sent a text message on her mobile phone, trying to play with you, haha (this happened to me, someone played me like this, and later I played him like this, haha).

Second: your girlfriend wanted to send it to someone else and accidentally sent it to your mobile phone. You saw it (but it's not true, because why didn't she just admit it? )

So I think the first possibility is great! !