Re: this may also be silly but
Nadz,
Please stop looking for trouble. I could care less if my MIL threw my husband a farewell party/dinner and nothing for me. I wish I cared, but I dont. I wish I could join the I Hate My MIL club but it just takes so much work and effort to dislike people...I get sick of it midway and start to think about how much more fun my own family is. Then, I cook up a storm, have my sisters over for a movie night and forget all about it in 2.5 seconds.
You need to start looking at your blessings more. That much is obvious.