Struggling with Job Loss and Betrayal

Hello, just need to get this off my chest. Haven't told anyone since March 10th, been on depression and anxiety meds since the 18th of March. On November 22nd, I left my job that I loved to help out my SIL at her company. I've been in the medical field for 20 years, she runs a trucking company this was temporary, we all knew it. Things were ok, I was trained, my husband works there, things were good till they weren't. On March 10th, everything changed I got laid off for budget cuts, they treated me like I was an outsider, I used my husband's office keys, as he was with his dad, since he had back surgery. Anyway they told me to give them his keys, so I don't steal anything from their office. What? My husband was furious, livid, I felt so betrayed, I wasn't angry so to speak, I was hurt. And for the most hurtful moment, I have applied and applied since March to get back in medical field, they are hiring, but not me. Sorry so long. I have no idea what to feel.......