Dilemma!

Ok........ I honestly can not decide on what should be done?!!

"someone" has been friends with a guy for about 4 monthes........
at first they were always fighting ......but now they've been nice to eachother for about a month.....
they're taking care of eachother and making eachother happy everyday...... (i'm sorry that i can't tell u the story in a more exciting way?!)
so.......now that they've realized that they really like eachother and can get along with one another (maybe forever??) they've started to think about marriage......
the guy is not educated.......has 2 jobs....... can live with 1 but is doing the other just so he can make enough money to buy a small apartment for the two of them ( because he loves her so much)
the jobs pay well ... but they're what u might call a "low job" .........construction / driving ...... (not that I care........ )
anywayz........
the girl is too young! (around 20) / guy (28)
the guy really wants to get married ASAP.....
the girl doesn't want to...after all , they've been only together for 4 months.........
she decided to break up with him because she thinks that it's crazy to even think about marriage when the guy has nothing to offer her (but his love.... and it's hard because she really loves him too)
after they break up .......he calls her and tells her the reason why he wants to get married ASAP is because his parents are sick! .. one of them might die soon :( .........and the other one..... who knows?
she can't leave him now because he's really upset about what's happening to his parents
she shouldn't stay with him either..... because if anything ever happens to the guy's parents.. he's going to be sad for a long time......and ... is it fair to get such a young girl involved in so much grief and sadness? (what a selfish question!)

: well that's what love is all about........to share ur happiness/sadness etc. with eachother!

me: OK ........ whatever....... I still can't decide!