From A Celtic Miscellany, entry 52. The poet is an Irish man called Uilliam Ruadh (which is to say, "Red William").
I am ensnared by the maid of the curling locks.A true picture, and one of many like it. Many of the poems of love, from Ireland and Wales and Scotland, reflect the values of the courtly love tradition quite highly.
Alas for him who has seen her, and alas for him who does not see her every day; alas for those trapped in her love, and alas for those who are set free!
Alas for him who goes to meet her, and alas for him who does not meet her always, alas for him who was with her, and alas for him who is not with her!
Not that all these poems are sad. You may enjoy entry 40, a Welsh version of Tristan and Isolde, which ends differently from the tragedy you may have heard before.