I agree with what everyone has said...I am a mum to 19 month old twin girls and one of the first things my OB said to me after the birth was to make sure I get a bit of "me" time its so important..
Once a month I would catch up with a few girls from work and have a chat and gossip at our fave cafe for dinner...even if it was to duck to the shops for half an hour to grab some stuff for dinner while DH was with the girls..It was still some time for me..
i look at the big picture..this isnt going to be forever...