So sick of this happening to me!!!!?

I am a 34 yr old female,I am not stuck up but I am pretty. I have had maybe 4 long term relationships in my life ,and have seen guys for like 3 months,here and there,but more times than I'd like I have noticed that I will meet a guy and we will start hanging out and seeing each other and things apperar to be good and moveing forward and then after about 1 or two weeks.we will leave each other for the evening and then I don't hear from him the next day,so I think maybe he's busy(I never call cuz I am not clingy and I do not like to be the one who has to call!) so I go about my life and he never calls and thats that.I hate this,cause I know I am not doing anything wrong.I evn bake them cookies and do nice stuff like that and I am not clingy or jelious. so,I mean what gives? I do notice that alot of guys will say I was hurt really bad in my past,well boo,hoo EVERYONE HAS BEEN HURT IN THEIR PAST! do they leave cause their feeling are getting to deep?imjustglad I dont fall in love easy!