Hi ruby,a lot of verbal expressions are part of social etiquette. People say things like how are you doing?Having good time?Are you alright?How is your day?Things like that.It doesn't mean an invitation to dump what ever bad things are going on with us.
What I understood is your boss is nice and you said so.Good managers,bosses or supervisors want their subordinates to be comfortable in the workplace. Hey,if you need anything ,you know where to find me or if you want to talk or need help you can talk to me.That does not mean you can talk about your personal life.She said those nice words regarding if any difficulty arises in the workplace ,you could talk or ask for her help.