Should I be angry at this or am I overreacting?

my girlfriend of over 3 years just started a FB account. her first picture is nice of her and a girlfriend. second photo is of her feet with a pair of sexy black heels with a pair of panties with a cross on them hanging from the heel. feel like im dating a trailer park queen here.. i got mad and big fight broke out between us. am i overreacting or am i justified? i know strippers on there that dont have that big of thirst traps as their picture. wtf is going on here?

Should I be angry at this or am I overreacting?
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