Well, it's happend. After 6 months of flawlessly handling everything with a wonderful girl, passing shit tests with ease and maintaining excellent value I've made a horrific error and potentially put everything at risk. Naturally I'm struggling to think objectively in this situration and as such would greatly appreciate any advice that anybody has to offer.

Essentially what's taken place is this, I observed a "questionable" photo of her on facebook, (which turned out to be innocent). Rather than ignoring it as I should have and would have advised anybody else to do, I sent her a text asking about it. Of course as a result this she called me, in tears and extremely hurt that I'd expressed distrust. Her messages have since been colder, but as this is still very recent I'm not surprised.

Of course the situation may be a write off, like driving a beautiful car very fast into a wall, but I'm going to try reslove it. The plan follows, please evaluate for me and offer any suggestions that you might have to improve it.

First I'm going to limit contact, give her space in order to allow the hot emotions to cool down, and so that she grows to miss the regular contact. I'll be strictly adhereing to a 1:1 texting ratio. This will also help to prevent further loss of value and backsliding into a try-hard approval seeking mentality.
Secondly I'm not going to bring up the topic of what happend here, rather just pretend and act as if it hasn't happened.
Thirdly prepare for the worst. Obviously there's a chance that she sees me expressing distrust as a dealbreaker, in which case I must accept her decision and move on.

And of course, never repeat this rediculous, obvious error for the remainder of my days, with anyone.

Thanks again in advance for any advice or suggestions given.

Usually one screw up is fine if there's enough attraction but sometimes girls can lose attraction without showing hints then as soon as you screw up boom their gone!

You plan seems sound! If she ditches you for one dumb moment then she's not worth it!

A wise man once said 'its rarely the first mistake that ruins you its how you react to it'

You seem to have the right idea