I go out with friends about once a month, DD (18 months) is looked after by DH. I also do volunteer at a Brownie Pack each week and leave her with DH then too, although I'm not sure that counts as "social life"!
As a couple we go out once every few months and my mum babysits. She has has DD overnight a few times so we could have an evening out and a night off.
I don't think I'm prioritising it over her. She's with her other parent most times and she loves visiting her Nanna.