In two cases, one is that he sees through the test plan of you and your girlfriend, then shows that he has a girlfriend, and flatly refuses; The other is that he has sincere feelings for you. Besides liking you, he is not interested in others, so he will show that he has a girlfriend and refuses each other. If there are no errors in the test, the second possibility is very high.

But this approach is very risky. Once the other person knows that you are playing tricks behind his back, test him. In case he says you don't trust him, you can't ask him directly if you have anything to say. You must know what kind of person he is from others by means. Then I came up with the idea that since even the most basic trust can't be reached, there is no relationship. You are not worth the loss.

Since two people are together, mutual trust means respect for both sides.