I don't think she is suicidal but I think she is getting to where she doesn't care if she dies.

Like people who join the army to do dangerous stuff, or the thrill seekers that always push the limit. Her running off to Brazil to be with a guy she never met IRL was not safe.

I don't think she cares or has a plan at this point. People her age are completing or have completed college and are starting careers. She seems to be stuck in a constant rut.