Dude, just walk away and focus on ur gf. You'll need all the money to get her anyway so probably can't afford hoes... which is good or bad depending on person or situation....
Regardless of the hobby issue, I suggest you make a move. Directly ask her out. Make it clear it is a date. No point in waiting. If she is into you, she is into you, if not, she is not. You don't want to go into the friend zone.