What Does Forever Mean?

"Nothing lasts forever, because there's no such thing as forever"
Abigail Marie Reyes had dreamt of spending her forever with her boyfriend, Gian Canzares. Everything was perfectly fine with them, at first.
Gian always wanted to be a great singer, since he has the guts to be one, he tried by the help of his cousin, Kean. And because of the possibility he'll be famous as hell, he broke up with Abby for thinking that their relationship might not work out the way it used to. Abby accepted it. In fact, she's happy for him. Well, at least. Abby is so damn hurt to the point that she wanted her condition to kill her right away so that she'll not be in a perished state. She's sick, and Gian doesn't know a thing about it. Abby's still hoping in their 'forever'. She's still looking up to their forever. Will they have it? Even though it seems like fate's totally forgotten about their forever?