Men have cycles like females do. They go into a cave every once in a while. It can last a day, a week, maybe even two. They tend to come back like a rubber band, but if they don’t get their space they become irritated and grouchy and push further away. Not all men realize they have these cycles, but it’s important you keep yourself busy when you notice these signs. It can actually be a very good thing, like he needs space because he is overwhelmed by how he feels but if you chase after him and beg to spend more time together, it could become more of a negative.