2 guys ...both aries sun cancer moon ..

first one i met some years ago, he was everything i ever wanted....funny, smart, good looking, we just got along real well, i felt in love with him and i know he had feelings for me, but he was in a long relationship when we met and i decided at one time to keep my distance because it was really hard to see him and try to be just his friend.....that did not go so well .....still have feelings for him after 2 years of not seeing him just once or twice....
second one i just meet.....i find out that he is also an aries ...cancer moon just like the first......but they seem so different...for me the chemistry is not even close......why?

firts one was an aries sun, cancer moon, gemini venus, mars in taurus
second is aries sun, cancer moon, taurus venus and leo mars
i'm leo sun, aries moon, gemini venus and aries mars.....gem asc (don't know their time of birth😄)