Up until this point Tony and Steve haven't gotten along, but as the story goes on the become friends. I remember that they went to a baseball game together and almost get into a fight. Eventually Steve find out about Tony not being able to lie and tells the rest of the team. I am pretty sure that Thor then brings Loki to undo the spell. Also I think the story ends Tony/Steve, but I'm not a hundred percent sure.
If anyone knows what story I'm talking about and can give me a link I would appreciate it.