Thank you so much for the great responses. :-)

I actually went home today at lunchtime and she was squeaking as usual in the crate. She wouldn't calm down so I eventually let her out. I proceeded to ignore her (making her and my lunch) while she cried. She calmed down quite faster than usual which was nice. After 10 min, I played with her after potty time and 10 min before I left, I ignored her again. She was better going into the crate but as soon as I walked out of her sight, she started to cry again (no peeps out of me though).

As for the crate, I do have a divider that gives her enough room.

Thanks again everyone!!!!