Is it right to do nothing for nightmare of a MOH?

Been close friends for several years with MOH..asked her if she could nto handle responsiblities please let me know. She accepted and seemed very excited. Never heard much from her after that as she was suddenly "busy working". I just got laid off so I didn't mind doing everything since I had the free time...got another job 2 months later so "busy working" didn't fly so easily with me anymore. (She's married no kids btw) Told her to please plan a Bridal Shower b/c Momzilla was driving me insane and I can't plan my own obviously. Told MOH it could be big/small/cheap..meet up at resturaunt..whatever she wanted-just something. She told me no worries she was on top of it and had tons of ideas. (Wedding was december 12)..November-momzilla is freaking about about no invitation to bridal shower. I call MOH...she completely FORGOT to plan a bridal shower. Her one thing..she forgot. THEN told me she would host the party at her house but I needed to bring food/booze/decorations etc. I was desperate to get momzilla off my back so I agreed and bit my tongue. Meanwhile she goes and tells everyone and my other BM that SHE is paying for this party and doing it all as a gift to me for my wedding day. My BM and another close friend were horrified to discover that *I* was really buying/doing everything the day before and stepped in and took over. MOH woke up hung over, didnt lift a finger, and then took MY keg and told me she had a party to take it to the next day. I come to pick it up and it's still sitting in the back yard-FULL. She wasted a WHOLE KEG and when I confront her about how she made such a big deal to keep it..then just to waste it and not even bother calling..."it's a long story and how was she supposed to know?" was her only excuse. She showed up wasted to the rehearsel -loud and obnoxious, didn't get her dress altered and looked like hell for the wedding. I got my other BM and my friend very nice thank you gifts for all of their help and picking up the MOH's slack. Yes, she bought her dress..but the keg she wasted was more than the dress. I feel pretty justified giving her nothing (except maybe a punch in the face) and never talking to her again...I would NEVER done this to her or anyone. Some of my friends feel atleast a thank you card? I disagree!! Am I wrong or maybe just to pissed off at her letting me down so badly??