Riven was happy Ekko said yes to the question earlier on. Its nice to have someone actually care about what you think she tought. She had been alone for so long and now she has a good friend to fall back on. Riven falls asleep thinking about how Ekko is always there for her. 

Riven woke up when it was light already, she stood up to go look out of the window when she felt the terrible pain in her back. It must have been the fall yesterday. she started crying lightly.