Disclaimer: I own neither of these lovely characters nor the world they play in.
Spoiler Warning: Season 6 Episode 16 "The Chase"
Robin knew what she wanted and never hesitated when it came to claiming it as her own. Katherine was gorgeous, generous, funny, and most importantly she cared for Robin as a person. The red head saw her and still wanted to be with her. Katherine saw it all, the years of suffering through long nights in ankle breaking heels, the effort she was making to create a better life for herself, and she noticed Robin's feelings. Robin knew she was being manipulative, but she also knew what she wanted. She wanted Katherine and she was going to have her completely.