Deleting dating apps, how soon is best?

My friend has been seeing this guy for a few weeks (3/4) weeks and he has recently made her his girlfriend.

we thought this was a bit quick but she seemed happy so left her to it

However, we recently saw him pop up on hinge, so he still has a profile. We thought this was odd as we assumed if he had made her his girlfriend surely he would delete the app/profile

he was introducing to his work friends as his girlfriend, which makes it weirder. She has deleted the app completely but seems like he hasn't

are we over thinking

Deleting dating apps, how soon is best?
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