Hi Karlo,
I was going to say get another dog to keep her company.
But if you do give her to the other family, make sure you visit her occasionally as dogs DO remember!! I babysat a friend’s dog for a week and whenever we would visit the friend afterwards the dog would go crazy with happiness ~ jumping, spinning in circles, playing ~ and she was a biter with other people!! In other words, she missed me!! You are still part of her pack, and although she will love the new family, she will assume you abandoned her or are dead.
Or maybe have the new family visit your house first. Then they take her on walks. Then she visits them. Then she stays overnight. I don’t know, that’s what I would do…
Best,
Inky