Questions about platonic opposite Sex relationships pt. 2?

(Please note, this stems from a conversation I’ve had with someone and I’m not secretly asking if this is okay of me to do). Say you’re in a relationship and your partner’s old time friend comes back into their lives. They’re someone your partner was kissed by once before and they planned to move in with each other, but it never happened. It happened long ago and your partner asks you if they can be their friend again. How do you feel?

This question is mainly for the guys: Say you’re the partner. Be honest, do you really just want to be the person’s friend and is it really just a past situation to you that isn’t important anymore? Or is there something else going on?
Questions about platonic opposite Sex relationships pt. 2?
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