Do you think there’s an only once in a life time woman for a man?

My ex is a difficult man to be with, he’s extremely moody and stubborn. I am also his first love. First real relationship. I handled and loved him throughout without ever complaining. I also took care of him like a baby. His family loves me and thinks only I can handle him. I just wonder if it’s actually true or if it’s just something I say to myself to make myself feel better. Do you think there’s an only once in a lifetime woman?
Do you think there’s an only once in a life time woman for a man?
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