Lucky for you Wikipedia considers editing your own page to be a conflict of interest, and is frowned upon. Article subjects are routinely reminded that they do not own their article, as it should be a reflection of notible sources that exist
All the more of an issue: if an ex or disgruntled whatever starts a page about me, I am unable to correct it or get it deleted? For once I am glad us brits have such insane liable laws... :)
If it were entirely factual, based on notible sources, and met the usual criteria, then no it probably wouldn't be deleted.
If it is factually incorrect, or has no approved sources then it would be fairly easy to get help either deleting the offending material, or even having the article deleted outright. Wikipedia has a few ways to report issues, but even just asking an administrator on their talk page to take a look, is fairly common.
Wikipedia takes living persons more seriously, and has higher standards than other articles. Beyond just reverting, some edits are irretrievably deleted if warranted.
That relies on the person the article is about being notable enough to have sources. You won't get sources (let alone reliable ones) for my neighbour Barry. So any article about Barry (or any non notable person) is going to be unsourced...
That's one of the issues with articles about non noteworthy people...
