Feeling sad😢

So after since I had my daughter she’s almost 2, I’ve been feeling “touched out” more than usual. Usually I feel like that all the time.. it’s been causing some problems in our relationship. And today we had a fight, and we went to the mall for Christmas shopping and a guy stopped us to take a survey and I kept walking with my daughter while my SO filled out the survey. As he catches up to us I ask what did you fill out etc and he goes oh just my email but I told him to stay single. I was like wym? He was like I feel like it’s good advice for a young man. Not that I regret you or the baby. And it just hurt me.