Why get someone else pregnant?

My ex boyfriends brother and his girlfriend of 12 years broke up a while ago and both parts moved on with there lifes. i knew that there had been talk for a long time inbetween them about starting a family but nothing ever really happend. well, 2 years into my ex boyfriends brothers new relationship he is now going to be a dad.

knowing both him and my ex's behaviour i dont care about what they do with their lifes (although the fact that they are both wife beaters its something that worries me about the kid) its more of a why question as to why he was so quick to start a family so quick with someone else?

Why get someone else pregnant?
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