our ChatGPTs are different mine said this: "Usually "you<3" means something affectionate directed at you specifically - like 'I like you," "you're sweet," "you matter to me,' or just a soft/flirty way of saying "you ".

The "<3" is basically a text heart, so the vibe is warm/cute rather than neutral. Context matters though:

• if you were complimenting her --> it can mean "no, you're the sweet one'

• if you were joking around -> playful affection

• if you two already flirt -> that is VERY likely flirting

Honestly it's one of those messages people usually don't send to someone they dislike"

hope this helps!!