should i (23F) sell my concert ticket to get an extra day with my (23M) boyfriend?

hi! my bf and i are in a LDR as he's doing an internship in another state and wants to find a permanent job there soon. i'm flying to the state he's in on feb 14 (v-day of course), but i have to fly back monday night because i have to manage a work event on feb 17. i sadly can't leave on feb 13, because i have tickets to see nine inch nails (my favorite band!!). however, i miss my boyfriend so much, and while i touch down in the morning on the 14th, i probably won't see him until the evening, because he has a reunion event at a program he did a few years back, and isn't sure when he can peel away (i'm attending the evening dinner since guests are invited). should i sell my concert ticket so i can have an extra day with my boyfriend, or keep it and just accept the two days and a half i'll spend with him? i really really can't make my mind up. any (kind) advice would be greatly appreciated. :)