Game- Quidditch
If you wanted to see a happy Angelina, one would only have to watch her on the Pitch. The rest of the world didn't matter, all that mattered was the Quaffle and the Hoops, even if it was just for the brief moments of a Quidditch Game. Surrounded by Death Eaters and their forced fiances, it was not the crowd she'd have chosen to play Quidditch with, but Quidditch was a leveling sort of event. On the pitch it wasn't her and the Order vs. Death Eaters, they were just people playing Quidditch. That's all she allowed her mind to dwell on for the game, as thinking about what they were and what they did would make her lose focus, and she took Quidditch far too seriously to ever do that.
Angelina played her heart and aggression out on that pitch, not even bothering keeping track of how many times she, herself, scored, but knowing that it was more than a few.