This may not be true for every situation. But for most people saying everything is okay when it isn't, it is just easier.
But sometimes it is very hard to find out if the person is lying or not, because even she doesn't know how she feels exactly sometimes. She got so into this kind of being that even she starts to belief her own words and she continues saying "I am fine" when she actually would like to say "I am not fine. I feel tired. I feel confuse. I feel happy. I miss them".
She tries to be strong and to be fine but the truth is she isn't even though she doesn't show it. But no one should see it. No one is allowed to see the true feelings she is having right now. There is so much happening in her life. She is very happy but at the same time there is something making her sad and that confuses her.
She feels good when she is with that person, that makes her feel welcome and wanted, a feeling she didn't have for a long time, but then there is this other thing, those people who are so important for her. She misses them, she wants to know if everything is okay, she's lost. She doesn't regret a thing she has decided but she still wishes to have them in her life, to have news from them, no matter if it's bad or good news. She just wants news.
What confuses her the most, she doesn't know what to do. If only she would know how to be with that person she loves with all her heart and makes her feel good and happy and be with those people, she would be even happier. But she knows that this won't happen. So she has to live with it and do the best of it and just enjoy the time with that one person she loves so deeply.
It's not easy but you may find out how someone feels if you show just a little interest without pushing her of showing it.
I'm not saying I'm just saying