You can't do anything about the attractiveness thing. I can't believe how many WASs use that line. My W did. Don't let that lower your self-esteem.
WASs in an A will knock their LBS down to build themselves up. Don't think for a minute that the OW is "chasing after him". He likes the attention he's getting plain and simple. He's saying things about your "faults" to keep you strung along. This is from a guy's POV.
Go out and live. Detach. Don't contact him. Don't answer his calls. Nothing. Live as if you were single.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.