Loving offenders, thus I will excuse ye: Thou dost love her, because thou knowst I love her

Loving offenders, thus I will excuse ye:
Thou dost love her, because thou knowst I love her;
And for my sake even so doth she abuse me,
Suffering my friend for my sake to approve her.
If I lose thee, my loss is my love's gain,
And losing her, my friend hath found that loss;
Both find each other, and I lose both twain,
And both for my sake lay on me this cross:
But here's the joy; my friend and I are one.