The relationship between him and his father was strained at best.

That plan seemed to have strained the two men's relationship.

The relationship between the production and the government was already strained.

However, their relationship had already become strained by late January.

Later their relationships are strained in a 3 way relationship.

Whatever had been straining their relationship, it seemed to be gone now.

Ten years had passed before they'd talked again, and even now the relationship was strained.

But the relationship between the Mayor and the press seems clearly strained.

We argued and our relationship has been strained ever since.