You can't immediately make that assumption, but really...
If Eva wanted to be at the game last night, she could've been there. She's found the time to go all season. All things considered, I'm sure she probably wanted to go, to support Tony and the team.
However, I also suspect that at one point or another, there was some sort of dialogue involving Parker that disuaded her from being in attendance.
All of it is merely speculation, but I hardly consider it out of the realm of posibillity. After the media brew-ha-ha that boiled over after Game 1, I'm sure they both understood that it probably wasn't such a good idea to bring attention to themselves.