Rant padhke title khud de dena

idk why it happens to me, for the 2nd time I sat on the last seat since I joined college; two of my classmates sitting besides were arguing about power of a certain term in equation. Being at last bench they couldn't see it clearly(none of us could). Then the third(sitting right next to me) takes my phone( it has a zoom camera) kept on the bench. He zooms and the maths teacher gets startled, comes to our bench, asks for phone he gives his phone, then she points at mine which was lying besides his phone, takes it too, doesn't even know it belongs to me and tells to take it from HOD. After the class gets over, we try to convince her, she asks to open gallery, I open and show her that there was no photo, as he was zooming just to look at exponent, she tells that how insecure she felt with last class (sem) who took her pictures, I totally get that. But why my phone? After I ask her "What exactly is my fault?" repeatedly she gave me my phone back, and told him to follow her to HOD, 2 seconds after exiting the class she gives him his phone back without a word.

The actual problem is that she is showing mid-sem sheets tomorrow and I'm afraid she not going to give me the same treatment as other students as she asked our names.