Is it normal to immediately regret a breakup?
Mostly.Normal for most people
Yes, it’s normal to regret a breakup right away, even if you had good reasons for ending things. Missing someone and second-guessing yourself don’t automatically mean the decision was wrong.
A breakup can bring a sudden hit of grief, loneliness, and “wait, what did I just do?” Your routines and sense of closeness can disappear overnight, so it’s common to miss the person even while remembering why you ended it.
Try not to treat the first rush of regret as a verdict. Give yourself a little time, then think about what led to the breakup and whether those reasons have actually changed. If you decide you want to talk to your ex, you can do that thoughtfully rather than from the panic of missing them tonight.