I struck out last night and i am tempted to take care of myself today, should I?

Yesterday evening i was really in the mood so i told my lady friend that i wanted to make love when we went to bed well; stupid me at 7:30pm i called a tech support for my daughters online game club membership and the call lasted 45 minutes! So finally i ended the call tucked the kids in bed and proceeded to seduce my girlfriend... she was sleeping and grumpy and basically said she was too tired and waned do to sleep... I was pretty irritated... Did i have a right to be? And now today i am pent up and feel like i should take care of myself. Should i? or fight the urge.