My best friends depession?

Hey guys...My best friend of 11 years is being dealing with depession every since we have known each other...she is taking meds and see a dr regularly...and she has also been hospitalized for her depession but not for over a year now...well four months ago her dad passed away and she and him were very close...she is having a very hard time dealing with this and is not accepting his death at all...we do out to the cemetary together...anyway...I see her almost everyday and she spends alot of time with me and my husband and our little girls Her family is not supportive at all...her mom makes her feel like **** and her kids dont come around they are half of the problem with her depression....I normally dont have any problem with knowing how to help her but early this morning she texted me and says dont come here today...Im having a really bad day...now I know for a normal person that would mean to leave them alone but with someone with depession and bypolar and grieving...do you guys think that this means leave me alone today or please come I really need you...I am just wondering if I should just go see her anyway...she always feels so much better after we talk and she can cry and know that there is someone who cares about her...but I dont want to smother her either....thanks...depession can be a very confusing thing for someone who doesnt have it....