Originally Posted by
JKtheMac
The story doesn't use the word 'cheated', he doesn't say 'went behind your back' or 'slept with other girls', he doesn't even say 'dated other girls'. Dalliance includes a completely non sexual meaning, to dally with someone in a non-serious way. A mere trifle, a brief flirtation. Why are you all getting hung up on Thor cheating? He would have said "this is because of all of those girls I slept with" if that was what he meant. He had nothing to loose by saying that, if that was what he meant.
A synonym would be, "Is this because of those girls I spent a trivial amount of time with".