Thoughs on what you'd say to someone after a long absence?

i'm not 100 % sure if and when i'll see this person again although feel there is a good chance our paths will cross this summer. she had worked at this seasonal restaurant last year , her girlfriend's still work there although not sure what she is doing.

we got along really good last summer for like the entire summer until last couple weeks when she like disappeared and didn't even say bye. so not exactly sure where i stand with her based on things

its almost May so a part of me keeps wondering if i'll see her again? and keep wondering what i'd even say , want things to seem natural but want to be prepared for if and when she does appear
Thoughs on what you'd say to someone after a long absence?
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