Should I call him and tell him I miss him‼️‼️‼️‼️

Me and my ex ended Tuesday bc of he says he's busy with football but now my hearts completely broken like I really was in love with him and now I just feel so broken , he told me hes ok with being friends with benefits but I want him all to myself no one else, and last night he told me this girl Amy is trying to talk to him so I just said goodnight, and than today after school I saw him and Amy talking and it made me so upset I literally started to cry. I'm so in love with him and I believe what we had was real but I have no idea what to do ? Should I call him and tell him I miss him? Someone help me and tell me what I should do ugh!!😭😭