Advice: Stick To Your Schedule

This is for women because I think women do this much more than men.

Stick to your schedule.  I know it's hard to say no when you really like him and he texts you to see if you want to go to dinner tomorrow night because his basketball game got cancelled, the night of your favorite spin class.  Go to your spin class.  If he surprised you with tickets for your favorite band, that's different.

You have friends, family, work, school, et al.  Why should put him first and accommodate his schedule?  Why should you stay out too late and feel like a corpse the entire next day because you agreed to meet him at 10pm for drinks after his basketball game ended? 

I've been too flexible with my schedule before and it was a big mistake.  The guy got complacent and stopped planning ahead because he assumed I'd be available.  He'd start sentences with "I'll let you know."  No.  I reset that by being very unavailable, which caused him to mind his Ps and Qs again.  Your time if valuable.  Even if you have nothing to do, it is still valuable.