So, no ownership of the problem and no attempt to seek solution? Rather she is telling the dog to get back into the crate.

BTW, your major screw up was the online profile thing. That is some pretty nuclear stuff. It gives her plenty of ground to play the injured party here, first in trying to control you via shame, and later when she broadcasts it to her friends and family.

She will be riding that "he created a profile on sex sites!" horse the whole time from this point on, completely ignoring 7 years of dead bedroom. You are now the sicko seeking sex on the internet, in the narrative she will tell everyone else. Be prepared for that, and OWN IT. When you hear from her, her lawyer, her father, her friends, or anyone else about your "sex site ads" (yeah, expect it to escalate into a sleazy thing), respond plainly and frankly: "The marriage was over at that point. We were no longer lovers, only roommates. That was her choice, not mine, because after 7 years of a disinterested spouse, I needed to leave. My heart was broken and I was terribly lonely."

No apology, no expression of regret.

People will be startled by your statement that you lived in a sexless marriage for 7 years before leaving. Some will even then say, "Yeah, I know how you feel..." Others will have a sense that you were entitled to move on, and see it as a proper response. And still others, often low libido partners themselves, will not understand you leaving her no matter what.

I would put the ring into a drawer, so you can give to your daughter or son someday as a keepsake, call a lawyer for an appointment, and start the process of disentangling your life from hers. Be polite, be firm, be strong. Don't be angry, vindictive, or soft. No more conversations where she yells and you listen. When she escalates, you leave. No explanation, no response beyond a very quiet, "I don't talk to people who yell at me and don't listen." /exit

If at any point she sincerely seeks to change HER behavior, and asks for your assistance in some reasonable way, reward that with cooperative engagement measured to match hers. (ie, don't offer too much help or too little, relative to her efforts). That is true in all matters, even if you divorce. So if she is good about cooperative parenting, YOU be good about cooperative parenting. If she is good about splitting assets, you be good. If she seeks reconciliation by changing herself, you be open to the idea, but not the leader of the effort.

And conversely, if she is poor about parenting, asset division or reconciliation, you simply disengage, let the lawyer do the talking, and stay utterly, completely, strongly unmoved by her attempts to shame and yell you back into the crate.