<human>: Basically it has been 2 months since my ex dumped me and i'm still confused with the reason as to why, we still remain close friends and I visit him on a weekly basis to help out with stuff. However within a month (probably less) he met another girl who has already been to his and he's obsessed with her which hurts as it makes it feel like these 3 years mean nothing to him; however he never claimed they were dating and during that time we slept together a couple of times. A month later he found out the girl went to the party and kissed someone else, he was pissed, blocked her everywhere and suddenly started behaving strangely around me and is well, cold overall, ignoring my messages and "wants space".

 He isn't the type of guy to talk about his feelings i'm aware of this and i'm just simply asking.. what is with him overall? I'm confused with the breakup, how he moved on so fast and how cold he's suddenly turned. 

We've had a few breaks in our relationship where he went cold for a month and came back but this time i'm truly unsure :/

Can you condense the text into a few key points?
<bot>: I am basically confused and don't know how to feel about this overall as not only has he moved on so quickly but turned cold too