<human>: My brother and I were best friends growing up until our teens.  Ever since then, our relationship has been on again/off again for various reasons.  We are complete opposites, for one thing.  When my SO of 5 years and I broke up, I cut him off for what has to be the third time in my life as he refused to stop hanging out with her.  I know this sounds really petty, but he was going out with her (they are both alcoholics) and talking poorly about me in front of other friends I have that he didn't know about on a regular basis.  He still does.  

Nine months or so ago, he knocked up a girl he was obsessed with.  Everyone in my family thought this girl was bad for him, and encouraged him to stay away from her before the pregnancy.  Their relationship was full of visits by the police, etc. A few weeks ago she had the baby, and my brother filed for a paternity test.  After months of mystery, (the mom denied a thousand times that my brother could be the father,) turns out the baby is his.

I've always tried to be the best person I can be.  This child was born into what is going to become an increasingly weird situation.  I feel terrible.  For the kid, for my brother, for my parents who would be overjoyed to have a granddaughter in any situation.  I want to do my part as an uncle, but I have no idea what that means and if it is even possible.  I don't have much desire to spend time with my brother.  

What do I do?  Ignore it?  Try to fix our friendship and overlook the fact that he still hangs out with my ex who fucked me over?  Thanks Reddit, longtime reader, first time poster in relationships.

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<bot>: I cut my brother out of my life, he just became a dad, do I reach out and try to be an uncle?