1) 5 months is WAY too to wait to your girlfriend's living situation. WAY TOO. as Hot wants sex woman looking for men you've learned the hard way, there are some things you can only learn by being in someone's home. best case scenerio, you learn you have different decorating preferences, worst case you learn that she lives with an ex-husband or is still married. you get the point. 2) just because your girlfriend is struggling to clean and is very messy, does not qualify you to diagnose her with a mental illness. you can ask what has been going on with her if this is normal or not. you can encourage her to seek help, if she seems overwhelmed and disheveled. however, it is not your place to drag her into treatment or demand she get "fixed". 3) you are her boyfriend, and a new one, not her mom. so if you don't like her style of living or suspect she has a deeper problem, then you can support her in working through it IF SHE WANTS TO, but mainly, you have to accept her as she is. you aren't married and don't have to stick around if this is a dealbreaker for you. but it is wrong to expect her to change or become a different person for you. again, you would have been wise to get to know her better at 5 months in.