Can't find her. I'm lost.

Hello everyone, my gf left her cat with me and at night while i was asleep the cat left my room and i couldn't find her anywhere, and also idk if she's inside or left the house since the window was open.

Please help or give me advice to find her I'm losing my mind, my gf will get so depressed if anything happens to her. Ik she will leave me for this. Please help mr with anything please.