<human>: Me [19/F] and my boyfriend [18/M] have been in a relationship comming up on 3 years, and have known each other almost 5 years. We are both D1 collegiate athletes and because of this he is required to play in the summer. We go to the same school across the country but originally from northern california.

Last year in August, he was being sort of suspicious and I snooped for the first time ever and found out that he as flirting with someone who I knew and was also in the same travel program as him. They would flirt and practice together. He told me that he wanted to have sex with someone else to see what that feels like. We then took a break do he can discover sex with other people. We were supposed to be on a break for 2 weeks, and after 3 days he begged me to have an exclusive relationship with him. Since then I have been suspicious about his phone and have some resentment towards him for hurting me. I am still working on trusting him with other people.

Now that summer is coming up soon we have talked about our relationship over the summer. I know that I can last without being next to him and still be 100% comminted, mentally, sexually, and emotionally. 
He proposed that taking a break would be the easiest solution. 
Thsi would mean that I dont ask him about what he doing and who is 'seeing' if he is. A part of me feels hurt and disgusted that he wants other girls. I can't stand the thought of him having sex with other women; it upsets me. At the same time maybe he should have sex with other women during the break so he wont have to worry about experiencing other people when we are realy deep in to the relationship/marriage. 

I need help with outside opinions, ways to get over my resentment toward him and trust strategies... what do you think I should do?

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: we are both in a comitted relationship with each other and plan to have this conversation about the summer when it gets closer to the end of the season.