Not not loser, at the very least you tried isnt it and that
takes courage
However, I am not sure if the girl did the right thing by accepting
the ring, cos usually when a girl accepts a ring, means she accepts
the guy and in your case, she maybe giving you false hope esp she
knows you are interested in her, or worse she only cares abt the
ring (thinking: free one I take lor)
I am not in the position to tell you to be persistant or drop the
girl, that is for you to decide if she's worth your time, even if
she rejects you