Going to the concert alone

Hi all,

So I have a dilemma. I was supposed to go to see Noah with my fiance, but he decided to end things with me in a sudden turn of events. The concert isn't in my county, it was supposed to be a whole little weekend getaway for us. I decided to do the trip and the concert as part of letting go, but I don't know if I should sell the other ticket I bought for him and go alone and just share this experience with everyone else there, or maybe bring my sister (who doesn't really know any Noah songs). I'm sure I'm gonna cry the whole way through either way I just don't know if it's better to be surrounded by strangers for it or if I should bring someone in his place. Any advice?