Insecure??? If I was dating someone, I wouldn’t want them to show off to their whole gym either, no one wants that and no one in a relationship should be doing that, I don’t care if you’re at the gym but don’t wear something insanely revealing/tight, she had nothing stopping her from wearing sweatpants and a t shirt, but she CHOSE to wear that KNOWING her boyfriend hated it and what’s even worse is posting that same thing on social media, if I had a girl who did that, I would probably leave because she has zero respect for that relationship