Something's broken. Our desire is often more than simple physical response. Possibly your emotional connection to him suffered. It must have been bad, if even though the fight stopped, and he is acting ok, you still feel hurt.

I don't believe it needs to be forever.

If you haven't had sex with him since, paradoxically that is the very thing that possibly may mend the rift, thanks to that wonderful love hormone oxytocin. Explain this to him and ask for his help. Let him do something like maybe he'd do for you on a special day: long, creative foreplay, maybe some oil and massage. And you just relax, don't try to make yourself reciprocate, the idea is to let him be an attentive, gentle and patient lover, wooing you body to respond. Once it does, well do what feels good, aiming for your full satisfaction.