You become/acquire the tendencies of an alpha male: only you, your happiness, your peace of mind matters.

AND/OR

You realize the beta tendencies in yourself and put a stop to that. Women (and people in general) can't take you for granted anymore. You now have a realist perspective of the world that this world is a transaction and there is no inherent reward for being nice.

It takes a rude awakening (being dumped, divorce raped) to shake oneself from the colored perspective of this world that is taught to you from childhood and when growing up.

It is really tough to fall in love with a woman once again - post the realizations one arrived at when contemplating the causes for the loneliness. Any relationship or arrangement formed later would be on mutual conveniences.

Post all the red pill awareness, depending on his wants/needs, one can go back to the convenience of a blue pill world (=I still need a woman to validate my masculinity) or to write off the past emotional and financial investments in women and go his own way.

What is to be done from then, is the actual path of going your own way: there is no pre-defined path in this wilderness. Every man is the architect of his own life.