Well...She certainly has the right idea. I mean, if he wants her to stop seeing 'strangers', then all she needs is to get support from someone she does know! Namely her uncle.
Hmm...Playing 'Horsie', eh? She certainly looked quite adorable in that flashback...I suppose the way one plays the game changes as you grow older. Also, the fact that he popped boners even back then during horsie sessions is...an interesting piece of information.
In a way, this could have gone the Vanilla route in a sense if it was all just a misunderstanding...I mean, she did mention that she loved her uncle. (I'm inclined to believe her words, but I suppose there is a chance she was just saying that)