To cite one horrific example, through a quirk in current Church law, you can murder your spouse, go to confession, remarry, and continue as a communicant; but you cannot divorce your spouse, go to confession, remarry, and continue as a communicant. I am no moral theologian, but that strikes me as messed up. I am not Catholic, nor do I agree with the Church's position on this issue.
However, it seems to me that the divorced Catholic who remarries indicates his intention to continue to praqctice the sin. Thus his "confession" would be equivalent to that of the murderer who confesses that he intends to walk out of the confessional and immediately kill again. I doubt such a "confession" would qualify for absolution.
Could not characterize committing homicide against one's spouse as the functional equivalent of "divorce?" Please help me with some of this.