neva is shown visibly upset several times, and her child, bruma, as well (ex. the summer chapter and start of the game for neva, and ending of the game for bruma)
neva isnt abandoned, she and her owner alba separate temporarily during the second part of winter to mate with another wolf
neva also just gets lost or further ahead than alba in the first few parts of the game, but alba shows nervousness during those sequences without neva, and feeling upset during the second part of winter when she’s temporarily alone