so my take on this is that there is some underlying attachment between yuri and taeyang... in the least he respects her a lot and is thankful for her for setting his dumbass straight.
he never bullier her, and she knows he had nothing to do with what happened to her, so she might still like him, but not approve of his way of doing things, like fighting all the time.
tbh i dont think she meant that she wanted to go for sol's younger brother when she mentioned him, i just think she was asking junu if it would be cool for her to keep him as a friend.
tldr: feels like taeyang and yuri might end up together if they talk it out. also their son / daughter would be a beast