Is OTHER wrong in the post ? POST : I'm gonna spare the heavy details here because I dont want any bias. We have been dating almost 2 years now and are both in the final years of highschool. 

I went on a week long ski trip with my family in the beginning of March. It's the first trip we've had in a long time where me and my siblings all got together again. While I was out there I tried to text BF as much as possible, when I woke up, a little bit on the mountain, and more once I got done for the day and went back to the hotel. When I came home I was really glad to be back at school because this was the 4th trip my mom took my out of school for, I couldn't say no to them. The Tuesday after I got back I had a girl come up to me in person and tell me that she saw BF sitting in his car making out with some other girl during lunch while I was gone. Obviously i was pretty pissed so i ran out to his car and asked him what happened. He told me they just ate lunch. I badgered him more and he finally let out that it was his sophomore neighbor, they've been friends for a really really long time, they had lunch and then after school ate dinner then messed around driving trucks for a while. As far as I'm concerned, he can eat lunch with who ever he wants. I told him that, and that if he does have lunch alone with some other girl to just tell me about it so I dont have to have 3 people tell me "BF was hanging out with another girl!!!!!1!!" Because it's really annoying and really lowers my trust for him.

So that was the major incident that made me pretty mad and passive aggressive towards him for the past week. If I ever use his phone and open snapchat he tells me not to read his really personal messages with people so its whatever. He has probably 50 different girls he snaps every so often, some once a day, some once a month. Then if I check his texts he has around 4 or 5 girls that he'll check in on every day. Usually sparking a conversation with "Hey 😊" or "Good morning 😚". There were a few occasions of him calling other girls his baby which really pissed me off because that's how he texts me and if this is just how he texts everybody then it feels fake. I dont really have a whole lot of trust for him. I know it seems really petty to be mad at him over this but I just think it's really freaking weird that he texts these girls like he wants to get with them WHILE WE ARE DATING. Obviously itd be a different story if it happened before we were dating. 

So yeah that's my side of the story, tried to make it as unbiased as possible with how I see things. He told me to post it on here to get some input because I was talking to him about the whole situation last night. 

Sorry if the grammar is bad, I'm writing this on my phone. 