I hangout with two co-workers (lets say A and B) during lunch break. Both invite me to go to lunch with them then I seem to be invisible to both of them. Both will not talk to me and ignore my conversations. This happens almost all the time.
I am tired of keeping myself busy but then both of them insist on me to have lunch with them and then same thing happens all over again.
But their behavior is totally opposite when A and B are not together. Either one of them will talk to me nicely. Most of the time they complain about each other.
I am not sure how to deal with them. I don't want to be rude and I don't like to gossip.