I was in the fast lane, Civic type R came up behind me, so I pulled into the middle lane to let it pass. After about 20 seconds of it sitting behind me (but still in the fast lane), I needed to pull back out again as there was a car ahead, so I indicated, gave a little time, checked my mirrors to see that he was holding back behind me so I could pull out again, so I started to move out. Unfortunately as I started to move out he changed his mind and tried to overtake. My fault, but also just bad timing.