When another girl wants your man???

G

My boyfriend and I have been together for a year and a half. We’re both in college; he plays baseball at a small Christian school 3 hours away, so I only get to see him every few weeks. Anyway, there’s this girl who has some SERIOUSLY strong feelings for him...she tried to talk him into cheating on and leaving me during a rough patch in our relationship. She attends his school and I don’t, which is frustrating. At his first game this weekend, she shows up and continuously cheered him on, looking back at me each time to make sure I heard it. It’s like she actually thinks she and my boyfriend have a chance at a relationship, and it makes me nervous that I won’t be there if she tries to continue coming onto him. Boyfriend told me that if he doesn’t care about her, why would I be worried? I know she’s trying to make me mad, but I’m not the type to pick a fight with someone, especially when I’m the one with the man. Should I just let it go until I have a reason to ?