I made a very hard decision?

I just broke up with my boyfriend today .It was a emotional rollercoaster . Good ,etc but not always good. Anyways we met online ,we dated for a mth ( not long i know ) but during that mth i grew strong feelings for him but i had to later on yze those feelings to see if they real or just loneliness.I have depression and he has to find himself out. Anyways,the first mth we are at our best behaviour. But what actually happened was . He said he is ****** up , he drinks,smokes pot .i don't barely.I had a few as it was available and felt like it. Anyways i made the decision to let go of him .Someone that left me making happy. We felt there was a chance it would work and we tried it few times but i just think that me and him are compamtible but not in same places. he then started calling me himself ****** up,blaming himself for me breaking up with him. I don't see it as a blame. He just at a different place and me too. He 23 and i am 25.Anyone experienced that before where you alone,meet someone that you like and makes you feel good but over time and after giving ,giving ,giving its not meant to be but you want it be cause you rather be them than alone . So i am proud myself cause instead of giving in and being unhappy inside but happy you have someone you let go and be alone and i am relieved i now don't have that big weight. Anyone experienced this ? Any advice . This is a big goal for me in way that i used think others before me but this time i tried to listen my instincts and figure out what was bothering me . And it was this relationship and so i had to let go of it and be alone .