would i come off as confident?

she is only 5 years older then me.

i was taking to her on facebook a few months ago. i called her beautiful i said sorry if i was out of line. she told me the name of former student of hers who had hit on her & she blocked him.

she had told me she had blocked him on facebook. but she is still on his friends list & he is still on hers.

if i flirt with her would i come off as confident?