I need some help guys

So when i first started going out with a girl that i had liked for a long time, she said she was uncomfortable with me and my tree smoking. I decided to quit for her. It sucked, but she was more important to me. Well just last night she calls me, upset about something. She was at a party with some of her friends and they got her to try it. I didn't know what to think. I walked to her house at 1 in the morning so that i could talk to her in person. I kept telling her it wasn't a big deal. So she started treating like it wasn't too big of a deal. The more i thought about it the more upset i got. I had turned down bowls after bowls for her. She didn't smoke very much, just a few hits, but it was the fact that she did it. Now i don't know how to feel. I know she feels bad. I just feel so empty. I feel jealous that she didn't want to do it with me, I'm upset that she did't talk to me first. I'm upset with her friends. They knew i was quitting for our relationship, but they were still pressuring her into it. I guess i decided to tell you guys because you're the most caring of people for these types of things. So what should i do? I really want a bowl right now. Thanks for listening! tl;dr Girlfriend wanted me to not smoke trees, i quit. She later smoked treed. Advice?