<human>: I had my first kid when I was 18 while dating Joe (not his real name) but he wasn't the father. The guy I had been dating previously, Dave (not his real name) is the father. Unfortunately, I was young and dumb and my father told everyone that Joe was the father and I didn't want to seem like a whore by saying some other man was instead. Joe and I broke up shortly after the birth of my daughter and although he hasn't really been invested in a relationship with her, his parents have. They call everyday and pick her up for overnight visits but I fear that they wouldn't keep their relationship if they found out she wasn't their biological granddaughter. Meanwhile, Dave has moved to another state.  It has been 5 years and I still have feelings for Dave and think about him all the time and regret everything that happened. Should I tell him he's the father? Should I keep letting Joe's parents have a wonderful relationship with my daughter? What should I do?

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<bot>: Should I tell my ex-boyfriend that he is the real father of my daughter? Or let her continue to have a good relationship with her grandparents?