Suppose Lily had been planning a surprise party for her best friend's birthday. She invited all their friends, ordered a cake, and decorated the venue with balloons and streamers. On the day of the party, Lily's friend cancelled at the last minute due to unforeseen circumstances. Despite the setback, Lily decided to go ahead with the party and celebrate with the rest of the guests.
Can we infer that "Lily's friend was surprised by the party"? Yes, no, or maybe?