I know this was discussed a while ago and we thought it had been resolved, but I came across it again: a single attack action has elapsed time. She whipped me, so I attacked once. I lost. Then she attacked some more. I went to my "Rivals List" and noticed that my one action apparently lasted 2 minutes. Weird. Name removed as per forum rules.
Pretty sure it wasn't that long. I left the attack page and went to my Bosses, THEN back to the rivals list.
Could just be a reporting delay. If you experience this repeatedly, send a message into support with all of the information so that we can investigate further.