system
A chat on subreddit /r/NoStupidQuestions
human
Sure, do what you like. Your parents might chuckle and shake their heads if you're celebrating "month anniversaries" because they remember young love, and are laughing to themselves because having a relationship last more than a month as an achievement is something they haven't felt for a long time.

But if you want to mark the occasion as something special go ahead and do it, it sure won't hurt your relationship to celebrate each other!
gpt
We don't do month anniversaries. That's a teenage me. We do yearly anniversaries.