Would you have stayed?

I've been in a situational relationship over the past few years with an extremely deceiving person. It's now over and I'm looking back realizing just how insane I was, but was I really?

May: I met this guy on Xbox. We would play MW together and were quite the team. He had a lovely British accent that was so legit, I never questioned it once. We never exchanged photos and had a mutual agreement that if we fell for each other, it was going to be deeply, fuck the superficial, right? So we talk for a couple of weeks and have exchanged phone numbers by now. We lived several states away, so hanging out wouldn't happen for awhile, at least, not in person. He ends up coming clean and tells me his accent is fake and that he likes acting, but is no professional actor. I ask him what other accents he does and we find something else to bond over, no hard feelings.

Then it gets dark. He admits he had been suffering from DID, a disorder you can Google, formerly known as MPD.

November: Shit happens to him and he ends up homeless, but he's still working and saves up a shit load of money. He buys a ticket and pays me a visit. Granted, I was living with my family at the time, so I asked if he could stay a couple of weeks and explained the situation.

January: We meet and it's crazy. I pick him up and we head to my favorite coffee shop. We study each other, as we'd never actually seen ourselves before. He ends up staying for 3 weeks and leaves in February; everything seems fine up to this point.

Mid-February: Back in his original state - He was smoking bud with some potential roommates and one of them flips. It seems odd now that he was so scared back then, but it frightens him enough that he comes back to me, miles away.

March: It's my birthday month and I'm excited. I have the best siblings when it comes to celebrating, they make you feel so loved and awesome. So I'm kind of expecting this from the guy who is now living in my room. Instead, he changes for the worse. He has issues (that he's made up for himself) and goes on a rage about his ex-girlfriend and starts calling himself a different name altogether. We're not loud and angry people. This wakes my Mom and brother up and they come check on the screaming, raging maniac in my room. I get him stoned, he shuts up and falls asleep. We take him to a mental health clinic for help. I feel so ashamed and hopeless. Is there anyway I can help him? They release him a week later, still in time for my birthday, I'm ecstatic to see him. 3 days before my birthday, he turns into a little girl who tells me some really fucked up shit. Apparently she's been raped, beaten, you name it. I feel sick when she opens up her eyes, attempting to look innocent and asks me if I want to fuck, constantly, in this childish voice. He stays as this little girl for 2 days, dressing up in my clothes, etc. He "snaps" out of it the morning of my actual birthday.

There's so much more, but at this point, I realize how much shit I've been putting my own family through and I decide to leave with him, to that one state, where he was before. I fell completely in love with him and wanted the best for his mental health.

It continues for months.

Just recently he confessed to me that the disorder was never real and was just something he orchestrated to get rid of me, guilt-free. Except it didn't go as he'd planned and I stayed, attempting to help him, taking him to therapists, changing how I spoke as to not upset him; ultimately losing sight of myself to help him deal with some bullshit.

There's yet to be an uproar as a response from me. I loved him and I wanted to see him get better, but knowing it was all in vain makes my efforts feel worthless. So, instead of feeling anger and betrayal, as he expected when he confessed, I just felt defeated, betrayed.

Would you have stayed after March?