Suggest Treatment For Severe Anger Disorder And Depression

I don't even know where to start. This is going to be bizarre.

My wife is depressed because of what happened in our wedding almost 3 yrs ago.
We had quite a disagreement during wedding planning, and adding to that is my mom interferes a little.
I ended up not wearing the right color of tie that we had agreed on, and she absolutely hated it.
She has been angry, disappointed and kept asking to redo the whole wedding party and photos.
I don't think it's wise to redo the whole party considering the whole financial burden and time. We just bought a house 2 yrs ago, and she's not working. I'm the sole provider. She has been very angry all along, and occasionally would be enraged and scream and cry because she's upset about what happened on the wedding day. Sometimes when she's angry, she'd say very mean things like wishing very ill things on everyone that she thinks crossed her during the wedding (i.e her mother in law, sis in law).

Recently in the past 6-8 months ago, she started showing symptoms like panicking, afraid that certain parts in our house are contaminated with lead (kitchen cabinets, chandelier in bedroom), and even in the bathroom she's afraid she'd touch the mirror frame when washing her hands.

In the past 2 months, her symptoms are getting worse, she's getting more and more dependable on me, and not even dare to get food or water in the kitchen by herself, and at the same time still upset and angry about the wedding. She still insists we should redo the wedding party and invite everyone.
She'd repeatedly asked for my assurance and wash her hand to make sure she doesn't touch the painted kitchen cabinet, chandelier in the bedroom, mirror in the bathroom and among other things. Nothing gets done in the house. I've been doing all housekeeping, and working a full time job with busy schedule.

She's blaming everything on me and I cause all her problems. I feel like walking on eggshell. Anything I do can be wrong and cause her to be angry and feel her belongings are damaged. For example recently, I opened a mail once with mail cutter nearby her handbag, and she's panicking about it, and feels her bag has broken pieces of cutter. That's just one of the example among other things that I can hardly explain here.

I want to understand what's happening to her. Is this a serious mental condition with her?

Thanks,
Atmizer