Sister won't tell me anything.

Preliminary analysis: 1, bullied in the unit, submit to humiliation, afraid to tell anyone, because I am ashamed to say it, especially to you. It may be her boss who hurt her. She has no courage to resist. You should understand what I mean by being bullied, right?

Suggestion: Take time to accompany her for a while, give her encouragement, give her courage and warm her heart. What she needs most now is you to defend herself by legal means.

2. She has doubts or lack of confidence about your long-distance relationship, or there may be someone she likes better or is ambiguous around her.

Suggestion: Be kind to her and care more about her. You can consider changing jobs for her, but be careful. Give her a definite promise, a definite arrangement, go home as soon as possible, when to get married, when to be together, where to be, and so on. Let her eliminate her worries about the future. If you have a rival in love, you should be patient. This will be a love war. If it is urgent, it is urgent. Slow is slow. Compared with rival in love, highlight yourself and protect your girlfriend.