PROBLEM WITH MY GIRLFRIEND?!?

she's been acting really off with me recently. i mean i bought her about two months ago and i treated her well, like i let her go out with me into the FRESH AIR. and now because i won't introduce her to my friends because she's f*** ugly, she's being a b****. i mean it's not my fault she was born a gremlin. what can i do guys? i can't get a refund on her and she's pissing me off.