What should you do if you get removed on ig?

Basically this girl i was talking to in person, saw her couple times removed me after we had a friends night out we were both out, her friends organised something and she didn't tell me about it but rather sent a second hand invite through my friend. I get there not sure what's going on, I go on about my night have very little interactions with her and her friends and send a follow up message on Instagram. I get removed/unfriended pretty quickly? We both are on our uni breaks now and won't be seeing each other for few weeks.

What should I do? Leave it as it is? Or send a follow request?

What should you do if you get removed on ig?
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