Sigh. I hate to be the one to have to point things out, since no one ever listens to my beautiful advice. Especially not Rangiku. She's been my little lost cause since High School.
I don't know a thing about how Momo is going to be a problem. Yet. I can't possibly fathom how I would get in your way, either. My loyalty is with Squad 11. You aren't my captain. And, technically speaking, there is no Squad 11, or 10, or any other division, because we aren't actually there, where the dreams place us. There's people I'm close to or drawn to, but there's technically no time or place glue to hold us together.
So as much as I don't like Rangiku staying with someone that might be an enemy when she's asleep, and that I will hurt grievously should he hurt her? I also have to give everyone the benefit of the doubt. That includes Momo, because there's no telling how she will react.
That said, if you're going about fostering a belief in everyone around you that Rangiku's boyfriend is the devil? I imagine Momo will react poorly. And so will Rangiku.
That's why I'm in a state of watching and waiting. I'll snip at Ichimaru when I remember what it is and give my threat, and wait for him to foul up. I'm not only waiting for that to happen, but also with an outside entity as well, one that I can't even identify, other than she says she's an Elf. I'm not about to label her a danger, either, until I have some shred of confirmation, first. Then I'll deal with it. Because I like her and she's beautiful enough to be seen with me. So there.
Back on topic. I might be miffed at my BFF, Rangiku, now and then? But I'll get over it. I'm not about to lose her over this, and you shouldn't, either. I really hope you're right and that it doesn't come to that again with any fights between you and Ichimaru. What if she gets stabbed while you two are going at it in a round two? Then I'll want to kill both of you. And Soul King help you all, but I'll try to even if I die trying.
Ugh. I really need to do the entire Sex in the City thing and sit around sipping appletinis while writing advice columns.