A lot of guys are just weak, or naïve, or simple, or immature (regardless of their age).
You get young guys, or inexperienced guys, or lonely guys, or old guys, or shy guys, or average guys, or guys with low self esteem or whatever and actually even smart confident guys can delude themselves, and they have a girl sucking their dick and telling them how wonderful they are and they think they have found heaven on earth, that god has sent them an angel.
And they think they can date the girl or even marry her and life will always be like this.
These guys need to wake up and remind themselves of the bloody obvious thing - YOU ARE PAYING THE GIRL TO DO THAT!!!!
This is not reality. Life does not work like that.
Enjoy the fantasy of the punt and then go back into the real world and get on with your life - get a girlfriend, get married, enjoy being single, whatever works for you.