Should I get mad at my boyfriend for smoking with another girl?

Kirbycinderella
Okay, well for starters I'm Kirby and my boyfriends name is Peter. Peter plays hockey and is just the most perfect guy I've ever had. He's 19 almost 20 and I'm 17 almost 18. Now, we both smoke... Weed, ciggs, hookah ya know? The usual.
I had some really bad past relationships and have been cheated on too many times to count. I'm trying (and so far been successfull) to not be mistrusting and jealous of girls around Peter because of my past.

Well, a few nights ago we went to drop off bud at a girls house and she let it slip that they smoked the previous day without me. He never ever mentioned this to me and I heard it from her. Then the next night he called me and was like hey I'm going to smoke with amber I'll be at your house later then instead he went to Chris's house.

So, do I have a right to be jealous? Should I talk to him about it?
Thanks so much
~Kirby
Should I get mad at my boyfriend for smoking with another girl?
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