Is it okay to watch porn if ur spouse is busy ?

My husband is always on his game. when i ask for sex , he says one more game which lasts awhile , so i always say f that and satisfy myself, so i do it myself but i have to watch or hear something (weird right i know ) and i dont hear the end of it when he realizes i already did it bc whenever he wants it i stop then and there and give it to him so i do what makes me happy. But when we do catch other, its awesome sex. Im asking because my husband has threatened to leave me because its like im doing it with somebody else ????