I can’t say that I have, but I know some Christians I can’t stand.
You aren’t going to like every Christian. You need to try to like them, though, since God loved them enough to save them.
Everyone has something likeable about them. I always remind myself—I’ll be spending eternity with them, so why not try to get along with them now!
However, once in heaven, all our demeanors will change once anxiety, worry and stress are lifted. We won’t be trying to impress one another or talk about ourselves all the time.
I’m also reminded that heaven will be a big place with lots of people so it’s not like I’m going to be stuck with them for 2,000 years in a corner while they talk my ear off!