Girl has started to act different when around me , maybe interested?

i first meet her about a year ago , she was friends with another girl i knew that summer. we've never really been that close but lately we've started talking more. and she seems more genuinely interested in talking to me about different topics not necessary related to her work

she also looked really annoyed and upset when i talked to another girl there , like it was so obvious

there are some pictures on her social media that show her with a guy but there not really recent and she hasn't mentioned him in a while. i've also never seen him at her work but he doesn't live rate here. so not entirely sure whats going on there

Girl has started to act different when around me , maybe interested?
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