My wife doesn't hate the fact that I am into this hobby. She just hates the fact that it costs so much. I used to hide any purchase that I made but not anymore. I told her that it's basically a hobby that I like and that it's my own money I'm spending. I'm not taking money out of the grocery fund or any other expense fund that we may have. AND that fact that everything is bought in cash and not on credit card, is kinda like a slap in the face ... hmmm, I wonder why!?! Besides, I asked her, "What do you want me to do, spend it on my R/C or my 1:1's?"
I think the ting she really hates is when my brother is home. Reason being is because we, my brother and I, would head out the door with our r/c's in tote and she won't see us for the rest of the day.
This is my suggestion to you, tell your gf to get over it because it's a hobby that makes you happy. If she can't get over it, take a walk. If she wants to spend more time with you, tell her to come along and at least try to understand why you love it so much. If she still thinks it's childish, then she's not worth the fight.
No matter what your hobby, whatever it is, it will keep you happy. I love to go fishing, r/c's, and my cars and you know what? My wife knows that it's my passion and accepts it since she knows that's where my happiness is. That's the key, she has to know that everything you do is NOT all about her!
BTW, how old is she anyway?
