Hyper focus on the M, or MLC, or even excessive posting and reading on this board will burn you out. Ask me how I know! Sometimes the best thing to do is back off from all the reading, studying and posting. There are no magic answers out there so you can relax a bit. You already know what you need to do for right now. Time apply it and get comfortable with your new life/reality.
Doormat behavior and walking on eggshells is very unattractive. Possible OM certainly is not doing any of this. Don't be afraid to do or say what you feel, in a calm manner. Having said that, also know when to choose your battles. Sometimes it is best to let something go. Tining is everything.
My wife and I almost never argue. I was always a peace keeper at all costs. It didn't prevent us from falling out of love with me. I have learned that constructive arguments are a good thing. It's how partners work out differences and get their needs met.
Standing up for myself has not sent her packing, and seems to garner some respect. Move forward slowly, monitor results.
M: A really long time. Crisis: 5 years. She's still worth it.
Life is never made unbearable by circumstances, but only by lack of meaning and purpose. -Viktor Frankl
