I went to all the work social things when i was childless. (not that we have many but i did go). i still wanted to go after i got back from mat leave but really couldn't as needed to get home to DD and same as you , did prefer her company to work's company. Now 7 years later, i never go to work things and don't miss it at all. don't feel guilty, work is work and home is your first committment and "home is where the heart is" (sorry if that is too cheesy LOL)