Is ex spying on Tinder?

She blocked me after an argument, before she actively followed me on FB. Anyway, I made profile on Tinder and found her, her profile completely black with no bio, nothing. I know it was her, she had pics and bio before and suddenly removed all of it like she wanted to stay incognito. Do you think she was checking if i am active there since we had no contact?
Is ex spying on Tinder?
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