how to stop craving closure?

in about a week it’ll be 2 months since he left me and i’ve just been wanting closure so bad this whole time. my soul craves one last conversation with him. i really wish we could just entirely talk about us and our feelings in a mature way, but i also just don’t want to nag. these 2 months i’ve been trying to find peace within myself, i haven’t even talked to anyone new because ive just been wanting to be alone. but having no closure is weighing so heavily on my conscience and i haven’t been able to let it go. i don’t know how much longer i can go like this tbh. i’m so tired of having to put up a front and act like im okay with this when i seriously feel so miserable inside.