Final answer:
The speaker is a character from a dramatic work expressing deep grief over irrevocable losses, common in Greek tragedies or similar literature.
Step-by-step explanation:
The speaker mourning the fate of lost joy in marriage and the inability to speak to their children again is a character expressing intense grief and sorrow, likely from a Greek tragedy or a similarly poignant work of literature. The thematic elements of tragic loss, the mourning of one's offspring, and the despair over a forlorn future are central to this passage. Such themes are common in the dramatic works of playwrights like Sophocles, Euripides, and Shakespeare, wherein characters often experience profound despair and articulate their agony through powerful monologues. The extract provided seems to be a lamentation, one which underscores the character's suffering and the irrevocable losses endured, be it through death or separation from loved ones.