The Water For Elephants star, mother to daughter Ava, 11, and seven-year-old son Deacon from her previous marriage to Ryan Phillippe, recently got married for the second time to Hollywood agent Jim Toth.
Witherspoon, 35, told British Elle magazine: 'I think dating is inherently complicated, anyway; what I do for a living makes it even more complicated. Let's just say I am happy to not be dating.'
She added: 'I met a wonderful man. I feel really, really lucky.'
Reese also added that she is glad she has found love as it is one less thing she has to worry about.
The Hollywood star said: 'I'm in my head a lot and I worry. I know it's bad for me and I know I shouldn't do it, but I do.'