Earlier today me and my coworker (whom I considered my supervisor as I'm relatively new to this workplace) went to attain a seminar related to our work. We sat separately as she came to the place late, but we got to talk during the break.
Our home is quite close so after the siminar I looked for her to tag along. I could't find her however, and waited for another 10 minutes. Then I made a call. It turned out she had other business and left early.
I felt a bit at a loss and insulted that she left without a word.
Do you think it's weird to expect your coworker to inform you if they are leaving? We are quite close and I consider her highly, but maybe to her I'm just an acquaintance? Maybe I am the weird one. What do you think?
Edited Op here. You guys are right. I really do expect too much from her. It just my wishful thinking, I guess?. Thank you for setting it straight.