I'm doing a report on the abdication of nicholas II. I was told that that the tzar was left completely on his own and deserted by those closest to him before he took the decision to abdicate but have failed to find any source to that effect!
I'd be so grateful if anyone could enlighten me to the actual events leading to his abdication.
I presume you are using the usual sources for Nicholas II - such as Massie, his published letters during the war, Steinburg, et al. If you are not, let us know and we can suggest sources for you.
In answer to your question, the Emperor was apart from his immediate family at Stavka when the unrest in the capital began. He was unable to return to them until after he abdicated. He was deserted at the end by many of those he trusted and regarded as friends, and the whole situation was undoubtedly devasting for him personally.
He relied on the army, all of whom said he should abdicate, including other members of the Imperial house. They precipitated his decision, but really, it's a fairly complex issue - there were numerous coup plots during the time, for example.
Best of luck to you!