I think you thought/behaved quite naturally considering cousin's
behavior,which I'm sure puzzles you as it does me.Hope she's
not a mind-game player,be cautious. Please don't tell self you are
nobody,it's not true. Perhaps you'd like to read up on self-esteem? The accepted master of subject,is Nathaniel Branden,guy is genius. I recommend:"Honoring The Self", and
"The Six Pillars of Self-Esteem".
Respectfully,
BLUEDOVE