Help me find this story

So it's yaoi. Not sure if it's manhwa or manga. It has NTR plot, and omegaverse/beastman hybrid some sort. A married couple with light colored hairs maybe. The bottom apparently contacted a third person to sleep with the top to test his loyalty, maybe. The third person has tan skin and dark hair, third person ended up enjoying fucking the husband and they sleep often. I don't remember the rest but pretty sure there's a threesome scene where the bottom joined the husband and third person in bed.