Are you happy in this relationship? No. Are you getting what you need from it? No. Why keep it then?
Love is a misleading feeling that goes away really easily with time as cynical as that might be.
Btw giving her free money so she feels independent is as backwards as it gets, because she is fully dependent on you. The money thing has to stop, tell her you need to invest in IM if you want to get away from your day job and tell her to get a day job herself. If she acts as if you owe her the money for doing nothing and for making you feel miserable, end it. Going to Australia sounds like a great plan as well.