Longing

A feeling of wanting for someone or something. It is said to be a combination of love/happiness and depression/sadness. Also a synonym for yearning.

Reference:
Holm, O. (1999). Analyses of longing: Origins, levels, and dimensions. The Journal of Psychology: Interdisciplinary and Applied, 133(6), 621–630. https://doi.org/10.1080/00223989909599768