Just my two cents

Its an interesting point and becoming too beta absolutely leads some women to stray. I also feel it is a good frame to have. I mean to take some fault for the cheat is good for you mentally to improve. I've been cheated on twice and each time I have grown from those experiences tremendously.

The only thing I'd say is that some people are just born-cheaters or at particular time in their life they will just cheat regardless. You could meet every expectation and they would cheat anyways. I think it is important to screen women you get into LTR with. For instance, if she's cheated on all her previous bfs, chances are she will cheat on you - that's an easy rule. But I also find that women I know who have will-power, confidence and who are not easily influenced are less likely to cheat. I find party-chicks who do drugs are also more likely to cheat etc.