I understand now what is meant by "Rambo".
36, married 8 years, 3 kids under 7. Been together a long time - dated off and on since high school. Found MRP 4 weeks ago the typical way - google searching about wives with low sex drive, that kind of shit. I'm through NMMNG and WISNIFG. Starting NMMNG again. I've listened to them on audible and not sure I retain as well as reading so listening again.
6'3", 170 (skinny). Have lifted a lot in the past. Could bench 310 at one point but let that go a long time ago. Started running last year and lifting again recently. Started a self-improvement kick on my own before finding MRP. Didn't do anything about being a beta bitch though before MRP opened my eyes. I've been a real shitty leader and a whiny pussy for most of our marriage and I realize that. I can provide examples later if needed.
Prior to 4 weeks ago sex was little more than duty sex, required a 40 minute massage, and took place 2-3 times per month. I was pissed off all the time.
Naturally, when I found MRP I figured I had this down. Started being more assertive. Made statements to the wife instead of asking questions/waffling. Took on a bunch of projects around the house (some for me, some that she had wanted) and kept busy. Started hitting on my wife, grabbing her ass, etc, and initiating sex about every other night which was way out of character. Her response was some combination of tolerance, amusement, and annoyance. It was fun and things were going ok. Thought I was well on my path to ruling my kingdom as an alpha. She still had no sex drive but I figured that would come. I even pulled-out once mid starfish sex and went to do something else.
Prior to finding MRP I bought her a Roomba for Christmas. She thought it was too expensive and returned it. She then showed me some cheap off-brand version that she wanted to buy instead. I told her that I don't care what she buys but I spent time picking out the one I wanted to buy and that I wouldn't help her set up some cheap Chinese piece of shit. I would only help her set up the one I bought. She went back and re-purchased the one I had originally bought. I thought this was a small victory.
I had been inspired either here or on the main MRP board (don't remember which) by a poster who bought a dry-erase calendar and starting holding family meetings. I decided to do this. Today I break out the calendar and my wife voices an objection. I open the calendar anyway and proceed to fill it out. She throws an absolute shit-fit. Yelling, crying, whining that I don't respect her or listen to her (she thinks I should have listened when she didn't want the calendar). I hold frame ok, try some "fogging" and "broken record" like "I understand you're mad but this process will help us schedule". I mix in some "workable compromise" like "I think we should try it for a month". She says she'll throw the calendar away if she ever sees it. She transitions to it not being about the calendar but that I've been trying to control her lately and that she hates having sex with me. Says she taking the fucking Roomba back. My oldest cries because he loves the Roomba. I tell him it's hers and she can do what she wants with it and I get him away from her. Kids saw most of this temper tantrum. Later, she begins basically telling the kids not to listen to me because I don't listen to her. She begins pushing the kids to blatantly disrespect some minor rules that I have set. Kids are rattled. Middle girl whispers to me later in the night that "mommy says we don't have to listen to you". Wife says at some point that if I don't listen to/respect her that she'll make me by screwing all kinds of things up until I do. Before MRP we'd have not talked for a couple days, then apologize to each other and I'd go on being a bitch. I'd have probably thrown the calendar away. Tonight, I did my best to hold frame, STFU, fog, and broken record. She'll continue her tirade for a couple days for sure.
So, do I just continue to STFU or do I go on the offensive with regard to using the kids as pawns to prove a point? I could care less about any of it but the use of the kids. Pretty sure I don't have enough (any?) of her respect (due to SMV, too much history of being a bitch, whatever it is) to go too hard on the offensive.
The stupid calendar would not have been any issue had I not rambo'd so hard for the last 4 weeks.

How should proceed through the impending shit-storm? Bring it.