Girls, Why she stalk my profile multiples times but won’t talk and she has a boyfriend?

Anonymous
A girl who has a boyfriend who study’s at my same university always stalks my profile. But never responds.
There’s a girl I find really cute at my university, I have tried to message a few times just to compliment but she never opens the messages (assuming because she has a boyfriend)

but every time I sent the message and like her picture she keeps stalking my Instagram profile. She done it about 5/6 times.
also I once commented on her photos with a emoji. And she deleted it Incase her boyfriend saw it.

I don’t message her or anything anymore. Also her boyfriend is the jealous type. Because I wear slot of designer clothes , a muscular from gym and new Mercedes which is rare at university’s (not that any of it matters) , But even now if I like her photos she keeps stalking my profile. If she wasn’t interested then why she keep stalking my profile just if I like her photo. She has 100s of likes on her posts
Girls, Why she stalk my profile multiples times but won’t talk and she has a boyfriend?
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