Have you asked the girl?

Is the feeling mutual? (I mean, she loves you too?)

You two already in a relationship? or you think of marrying her but you can't coz you supporting your parents an/or younger siblings?

If you two are in a relationship, does she know your situation?

From a woman's point of view, if she really loves you...she will adjust and understand you AND HELP YOU.

Money is not the real issue her..you're scared of additional responsibility because you don't know if you can do it or not.

Communication is (still) the key...