I completely agree. They’re married now therefore they can’t keep walking out on the other everytime they have an argument. I could see perhaps Belle spending a night at Ruby’s or in her library apartment when she initially finds out about Rumple’s lies just because she’d feel like she needed a little bit of space, but I would expect her to come back the next day and have it out with Rumple. Or Belle may make Rumple sleep on the sofa for a few nights.
This isn’t just an “argument” though, that couples have because one half of the pairing didn’t clean out the gutters like he promised. I feel as though what Rumple did is being totally downplayed. He killed someone. And then he lied about it. Again and again. Belle knows he’s killed before but she’s trusting him to be a better man and to rise above. And he failed. He let his desires and his anger rule instead of his better judgement. At what point does Belle become a totally unbelievable character–is it when she keeps forgiving murder? “Oh, honey, I know you were hurting so you went and killed this woman. It’s okay now. I forgive you.” If Rumple honestly doesn’t think there are consequences to magic (I mean..hello. All magic comes with a price but apparently the guy who first told us this HASN’T FIGURED IT OUT YET!!!!) then he’s just going to keep making mistakes. A few night on the couch doesn’t fit the crime, nor one yelling match with Belle. You know what you spend a few nights on the couch for? When you miss your anniversary. Not for murdering someone in hopes of no one finding out.