He might be full still since he had so many meals close together. Mouse pink and hoppers are both a lot smaller than he should be eating, so that's probably why he was still hungry, but enough of them filled him up. I would not offer anything else for a week. Offering too often can deter him from eating. I would try and find a weaned mouse (little smaller than "adult") because this is the appropriate size, but if you can't, feed him 2 hoppers in a row, like immediately after he swallows offer the other.