My two cents is GFTOW is not for every guy (or gal). After getting blindsided by the first woman I wanted to marry, I eventually was able to get aroused by other women after about 2 months. Then, I found myself sleeping with them and not being happy. Now, I am in my 11th month. I have certainly found new women to date but I have no desire to be with another woman if I can't love her as I did my ex. Clearly, that does come with time but the idea is I want to reserve myself for something special because I don't want to waste my time or anyone elses.
I also believe that NOT having sex is a great way to trick the body into helping you fall for the first person who shows a spark. Since I want love, marriage and a family sooner rather than later, I can easily forgo random acts of sex.