Eoin Macken
Details around Taylor-Joy's relationship with Macken are pretty scarce, but it's believed that she first met the Irish actor while they were filming their 2018 short film, "Crossmaglen". In November 2016, Macken gave his costar a sweet shoutout on Instagram, writing, "Every now and again you work with people that transcend how you see things. @anyataylorjoy is one of those people — this girl got skills." It's unclear when the two started dating, but they posted several affectionate-looking photos on Instagram in the summer of 2017.
In December of that year, the former couple was spotted kissing outside of a restaurant in Philadelphia, and it was even rumoured the two might have been engaged due to the sizeable piece of jewellery spotted on Taylor-Joy's left ring finger.
In August 2018, around the same time Taylor-Joy was announced to star in "Here Are the Young Men", she was seen not wearing her alleged engagement ring. It's unclear what happened between the two actors, but Macken has since deleted several (though not all) pictures of Taylor-Joy from his Instagram page.