Later their relationships are strained in a 3 way relationship.

He strained his eyes in the direction from which they had come.

We've had to strain our eyes in more than a few scenes to see what's going on.

I should have known the capacity could not be strained in that way.

They strained their eyes in the darkness, but could see nothing.

No need for him to continue straining himself in tasks he's really not up to.

Just now she was straining the other one in an effort to see that all of her subjects were hard at work.

But with police resources strained in many cities, the authorities say these activities may not be enough.

He had strained himself in such a way, however, that it was very painful to him to sit or to walk.