Ok...so ive been having suspisions that my girlfriend has been cheating on me and the suspisions just keep getting worse and worse cause it feels like shes been avoiding me...like whenever i call she wont pick up...if i send her a message she wont reply...and today i went to cross country practice to see her and she doesnt even seem like she cares...all she does is stick to her friend and doesnt say a word to me...shes been known to cheat before and im afraid to confront her about it...but im also afraid of being right...what should i do?