FML RELATIONSHIP HELP!!!?

ok so iv ben dating this girl for 3 months and she is the most wonderful girl i have ever met just reacenltly she broke up with me. when i asked why she responded that ever since she told me that she fells like she is kissing a best friend rather than a boyfriend. my previous girlfriends when they broke up with me it took me about a week to get over it but for some reason i cry evey time i think about it. its ben 2 months now since she broke up with me. is this normal.... should i beg for her back or should i learn to let her go and if so how ... Dont ******* Make fun of me, i want serious answers...