Well, yeah, being betrayed fucks up a BS's head. But that's already happened, and you have to deal with it. You no longer have a choice.
The thing is, you can deal with it and thrive - it just takes a lot of work.
WSes have to deal with their fucked up heads, too. If you decide to cheat, you'll compound your problem.
I usually like to use different sources for research. I don't like to believe something unless I have 2 independent sources each saying the same thing.
The trouble with infidelity is that it's so highly emotional, and there's so much anger out there, and it's so easy to publish on the world wide web, that the crap outweighs the good stuff by 50 or 100 or 1000 or more to 1.
SI is by far the best peer counseling I've found, so you might consider just sticking with Si until you get your footing.