Dave's ESL Cafe's Student Discussion Forums

[Chan-Seung Lee]

[asterix]

He was so impolite I had to hold back from getting angry with him,
makes more sense.

If you say even though, you expect something a little surprising to follow, e.g.
Even though he had a broken leg he still walked two miles.

So in your example you would expect something like:
Even though he was very impolite, I still smiled cheerfully at him.
OR, e.g. Even though he was very polite I had to hold back my anger.

There has to be a little contradiction if you use even though and if someone is very impolite to you, it is not surprising that you had to hold back your anger.