Because of my 12.5 hour shift work, I get a lot of week days off and my SO does not realize how much time I spend on the bike -when she is at work... Not being on this shift would take away from our joint time, because then, the weekends would be really be a hassle; and she would realize how many hours I am on the bike.. If I do not get in my bike time, I assure you I am not fit to live with..
I plead with her to start going on Saturdday, easy rides with me. If she will not even try it, ( she has a decent hybrid) it makes me feel less guilty when i take off for my 5 hour ride.. we still have many activities we share at night.. Oddly enough, most days my exercise regime provides me with extra enegry to go out at night..