What can I do now to salvage this relationship?

Since you care so much about the relationship between you, don't take into account the kind of face problem that she doesn't give you a face, two people have a conflict, there must always be one party willing to bow his head first, before he can resolve the knot, first think about who the problem is, is his own fault, take the initiative to admit his mistake, it is the other party's fault, you can also put it up in a tactful way, find a suitable opportunity, ask her out to talk about her psychology, since she is your sister, I don't think she will refuse to reconcile with you, it is better to open your heart and talk to her, The problem is solved, and it's better than you being in a hurry.

Wait for a good time to apologize to her, because if a woman goes when she is in the prime of her anger, it is tantamount to looking for death.

Seriously, you'll regret it if you let it go. I have a brother who has a falling out with me. Then he and I ignored each other.

It wasn't until later that neither I nor he regretted it, but it was too late. He and I both wanted to reconcile, but what we missed was irreparable. There are some things that really need to be cherished.

I suggest you wait a little longer to find her, or you will regret missing it.

If you believe me, you can tell you a way: close your eyes for 10 seconds, and open them in the 10 second moment, and the mind will decide at the first moment of opening is the answer you are looking for!

Maybe she's the same idea as you are. Be brave.

It depends on the progress of your relationship and relationship, if it is really worth continuing, first of all, you have to take the first step bravely, women are sometimes out of a strong face, so they will not take the initiative, as a man, be generous and brave, find an opportunity to have a good chat with her, create some surprises for her, must be sincere and can move her kind, women are easy to be content, if she cares about you, you take the initiative to work hard OK, if she doesn't care about you, you don't need to follow at all. Be sure to take control of yourself.

Questioning, quarrelling, distrust.

Quarrels, distrust.

You just tell that person what is in your heart, and then summarize the experience and say that if you are willing to make changes to the relationship after you get back together, try to be as soft as possible to avoid arguing again.