You're tired because she keeps bringing up the same problems? Imagine how exhausting it is for her to keep carrying the same hurt, to keep explaining the same pain, to keep hoping this time something will finally change. She's not repeating herself to annoy you. She's repeating herself because she feels unheard. Because the issue never healed, it was only ignored. People don't complain when they enjoy it. They speak up when silence starts hurting more than the fight. If the same issue keeps coming back, it's not because she won't let it go it's because nothing was ever done to fix it. Listen before frustration turns into distance.