Negative but postive all of a sudden.

hi,

A friend of mine has been going through a hard time for a while now and she has been telling me all about it and how its made her feel so low and anxious but yesterday she text and it was a postive one, all of a sudden she is saying things like 'you have to trust that life only gets better and that happiness is just around the corner and that God will make things work out in the end'

Should I be concerned with this mood change of hers?

Maybe she's realised she's been a bit of a downer in your conversations so she tried to overcompensate by sounding a bit strange when trying to express she's having a good day.

If it starts to appear she's very up and down and not able to manage her emotions then that's something that should raise concern.

It could be somewhat concerning- keep a careful watch on other strange behaviour changes. Most likely it’s nothing but best to be caredul

If she's very up and down, if some days she's negative and other days she says things like 'sorry about what i said earlier, im fine now, im trying to find joy in little things'
Why would being up and down likely to be a concern?

Thank you for your answer