You can be a good man, a good father, and a good friend ... who is a castrated platonic friend.
A good mate is also a good sexual partner.
I think keeping some of that magic is at odds with the other three things. I'm not saying you can't be all. Just that if you focus too much on being a good friend, that can erode your sexual chemistry.
Me: 50, MLC/WW 45 Young kids Nov 2015: BD1 Apr 2016: BD2 Jan 2017: W filed Feb 2017: D final