Does this look alright? Boyfriend cheated..

For my (ex) boyfriend. . . I bought this outfit at VS for tonight, but found him with another woman in his bed when I got home...

We were together for 1 year and 9 months, I am 20. I just cannot believe it.

Does it look okay..? My self esteem and confidence are at an all time low.. It was $98.90 and I still want to keep it.. Sigh..