Who was he again? Feels like I've seen him for the first time but probably not.
I'm pretty sure that's the prince, who if I remember correctly was both Evie's fiancé and was a potential love interest for Elsa, hence Evie's role of being a villainess.
Obviously neither of the girls are invested in being with him here, but I don't think we know how the current him feels about either of them since he only really got to do anything during the childhood arc. If I remember correctly