Bug: 10 hearts with Leah, but she is no longer single?

[Daffa]

I did pretty much nothing but farm/mine for the first year, looking around; I was only interested in either Leah or Robin... Robin is of course married, so Leah it is! My first winter I noticed Leah was no longer single... Sad face intensifies... Regardless I soldiered on...

So late first Winter, going into the second Spring/Summer; I started things up with her, got her to 10 hearts, went through her art show event, had the picnic event(unwanted guest appearance included), and a few of the other mini Leah-events.. And I still can't buy a bouquet, the golden amulet guy on the coral is like "You're not ready, forever alone bro..".

Not sure if bug or friend zoned.. Halp!

Sad evidence picture included:
http://i.imgur.com/mVXAP3O.jpg

[Jofe]

Just came to say that I have the exact same issue. Don't know at what point that changed as I only noticed it when the guy who sells the charm told me that I wasn't ready. Also I can't buy the bouqet anymore so not even hope into trying to marry any other girl.

[STUCKOV]

Same issue. After kel visit it was over :/ ...................... 35 h of and i lost her. Ok i used save from winter. So far soo good. But i have full stats 14 days now and thers no rain :/ Redicules 28 days no rain....