My woman needs cannabis, so she doesn't have to use prescription meds to sleep (she's a total insomniac without some type of medication). Even so, she was extremely paranoid, but I held firm, and she's happy now that I did, because she's off all those (addictive) prescription meds, she feels better, she sleeps better, and it's cheaper than buying pot off the street. Plus, she knows she's getting safe, reliable medication this way, not some street stuff laced with who-knows-what. Had SHE held firm, I probably would have given in and trashed the growing idea (going without pot, even for years at a time, is not something I have ever found particularly difficult). However, we've been together (unmarried) for...mmm...17.5 years now. I don't think I'd have given in if I'd only known her for a few months or a year or two. But fortunately, she needs the pot more than I do.

I hope your relationship goes well! If nothing else, you have some bargaining currency next time you want something and she doesn't, because you have already given up something you enjoyed.