I fell out with my oldest friend last year over cancelling a trip away (due to her not responding to my numerous messages trying to make arrangements). I cancelled the trip and sold the tickets; out of nowhere she accused me of lying about the trip like it was a scam (she lost out on £30) and taking my partner instead, and threatened to take me to court. I split the money from the refunded tickets equally between us, sent her proof of the refund but we have not spoken since. Our mutual friend told me recently that she has told her she would be willing to rebuild the friendship, but only if I make contact with her first. We've known each other since we were little and it seems silly to fall out over something so small, but should I bother reaching out when she's not willing to herself?