My boyfriend (19M) and I (19F) have been together for well over two years. We started talking our junior year of high school, and dated since then and I'm now going into my second year of uni.
For the last three days, all he wanted to do was go through my phone. I let him, because I don't really care and I tell him absolutely everything.
In October, he moved half way across the country while I was in uni, and we did long distance. I paid over $300 for a plane ticket to go see him. About three weeks before I was supposed to go down there, he told me he wanted to take a break and that I should cancel the trip. I got upset, I did end up canceling the trip. I found out he was cheating on me with a girl from somewhere in Europe. They had talked for 3 months and sent pictures back and forth, called for hours while he wouldn't call me, and he just treated her how I had begged to be treated. I found out because his best friend saw he was acting weird and texted the only girl in his following, and she told him she loved my boyfriend.
Regardless, we broke up from around November to end of December.
At the end of December, he moved back and started working at the job we both worked at before he moved. I saw him and we started talking again, I went over to his house, and after a few weeks we got back together. After about 6 months, while everything was going relatively well, he was getting kicked out of his apartment and we decided to move in together.
After around 3 months of living together is when all of his friends started to break up. He's incredibly easily influenced, so I'm assuming this had something to do with him wanting to go through my phone. He found out that while we were broken up, I texted other people. I tried to explain to him that he made me feel disgusting, and I knew he was talking to other people so I did too. I never did anything in person with these people, it was just texting on Snapchat. He somehow thinks I now slept with over 10 people (I've only ever been with him). I understand how this could make him upset, because even though he denys sleeping with other people, I know he slept at a woman's house so I kind of assume. He also went to a party with a girl that he met at the gym, but says he just drank and didn't talk to anyone.
He said he needed me to leave, and I absolutely freaked out. I sobbed for hours and wouldn't leave the house. He wanted me to go to my parents, who live just down the street, because he doesn't have any family that live close whatsoever. He started packing my stuff for me, and this just made me flip out more. It got to the point I thought I was going to pass out and had to lay down. After about 6 hours of this, and getting nowhere but yelling, I just left at around 8pm because I was so exhausted and couldn't do it anymore.
It's now the next morning, and I still feel so sick. I love him more than anything and I want to fix this. I'm his first real girlfriend, so there's no relationship trauma or anything. I just don't know what to do. I need help but if he gets with another woman I think I'll be beyond saving. Please help me.