My girlfriend (33) of almost a year and half tells me I'm the only one she ever got attracted to. She was in a couple serious relationships before and got divorced a year ago. I recently read some posts she posted on a forum and found some conflicting stuff. posts Like "now that I'm single, I'm more physically attracted to younger men but mentally attracted to older" .... "one of my Ex's friend on FB posts messages that are flirty. I haven't ignored him because he is hot and nothing will ever happen anyway".

I don't think she is cheating on me but not sure why she has to tell me things different than what she is posting online to the general public.

any thoughts?