I have been dating this girl for 2 weeks and she smokes a lot of pot. Should I dump her?

I really like this girl, dating a few weeks. She's easy going and cool and whatever etc etc. But she smokes allll the time. I don't mind pot smokers, all my friends do it. I don't smoke though. I don't care that it's illegal but I am kind of concerned that she's an escapist or something. I feel like sometimes she might not be paying attention to things I'm saying. I'm at that dating crossroads where I should make a decision before I get too attached, and I need advice. I'm easy going too, and it doesn't bother me that much but I can't see myself marrying someone who does that. She will probably change eventually, like most stoners I've known and maybe I should stick around. Her friends say she used to be a lot worse and that maybe I'm good for her. She seems kinda dorky and goofy a lot of the time though and I'm not sure I can put up with it. Im very indecisive and deep down I don't care one way or another. Maybe I should just consider myself lucky that I have a girlfriend....idk idk