<human>: I have been dating my girlfriend for about 8 months now and things have been amazing this whole time.  However before we started dating we were best friends and she would tell me everything... including the people she liked before me.
 I was always a little upset about it because it annoyed me she was attracted to other guys while still knowing me and being friends with me.  Once we started dating though she never looked back and its been great. 
 The other day however she told me that she had liked my best friend for a couple weeks before we started dating and it's driving me crazy.  I guess it's bothering me so much because she was attracted to these people before she was attracted to me even though we were good friends who would hang out almost every day. 
 Is it normal that I feel so terrible about this or am I overthinking things?  Thanks!

Could you distill the essence of the text into 1-3 sentences?
<bot>: My girlfriend seems very happy and in love with me but admitted she liked my best friend first and a couple of other guys while she was still good friends with me.  Don't know if I should feel as terrible as I do.