You could shoot them a message along the lines of “Hey I thought about you recently and figured I should reach out, would you want to catch up sometime soon?” Then from there if they accept or respond you can plan a day to meet up and talk and move from there how you both see fit. Best of luck!!

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You botched up that first sentence so hard, I still don't know what you meant to say. As for your question, you absolutely can reach out. It won't be weird. Just say something like, hey I thought of you recently how you been etc etc, exchange pleasantries so you can see her vibes if she's feeling you or not. If she seems open to you, eventually ask to catch up, hang out something like that.

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