The reason why most relatiships fail is because the dudes puts on a front when he first starts dating the chick and lets face it if you look good chances are no matter how fucked up and insecure you are the chick will buy the fake over confident alpha bullshit because you look the part. The girl usually falls for this guy hard and quick, 2-3 months in the guy is still in control of the relationship and she's still doing everything to please him, as the relationship gets more serious the girl starts demanding more affection over time. The guy is still alpha at this point but this is where her little shit tests begin, she starts becoming less affectionate or acting distant and the dude goes into panic mode. The mask starts to fall off and the alpha male she fell for is becoming more and more of a beta in her eyes. Pretty soon every man becomes a threat to him, and the attraction from the girls point of view to the guy is pretty much gone. She may still stay in the relationship at this point but in reality your toast.
This is why I say Fuck relationships. I don't have time to play games with these little girls, i spin plates, I always have options, I never get attached to one girl anymore. The reason alphas don't get cheated on isn't because they're alpha per say, its because they get in and they get out and don't invest in the chick emotionally.
The trick is learning how to balance the two "alpha" "beta" .
Holding down a full time job being good with kids being patient caring giving loving nurturing are beta traits. They are important traits a woman needs to know you can do these things if they are going to make a long term investment in you.
Being alpha is important being a good a leader, having a good build, being athletic, being sexual are important traits. Your gf wife fiance whatever needs to see you still have a little bit of and edge once in awhile.
Getting attention from other woman will keep her in her place too. Doesn't mean you have to cheat but some attention is good.
A girl I saw out one night on my bachelor party wrote me a pm on Facebook. It said you are sexy as fuck. I deleted her but not the comment. My fiance saw it! She was pissed for a a day. But the few days after I was fucking her like an animal. She let me do anything I wanted to her. She got jealous and realized other women still find me attractive.
I make sure to have sex at least 2-3 times a week. Good sweaty sex that lasts awhile. This keeps them happy and relaxed. If you aren't getting at least that you have to make sure it changes. It's what keeps the happiness.
Learn to balance both and have a good faithfull woman with some brains and integrity. Believe it or not they are out there.