At the weekend / time off work.
I feel like I can go from being quite happy during the week when we don't really see each other much to feeling so irritated by him when we do like at the weekend when we're off work for example.
During the week I feel like we are in such better moods and we genuinely get on during the small amount of the day we see each other for.
If we have to spend any decent amount of time together though I hate it. I feel like I hate him. I can't stand being around him for a full day, everything he does annoys me.