2) Photos, love letters (love e-mails?), gifts exchanged for special occasions, witnesses who were subjected to mushy declarations of love?

3) See above, substitute the "alienator" for the now injured spouse.

4) Divorce papers served, followed by the other spouse moving in with or moving to be near the alienator?

Are you planning to file such a suit?

If you are, think carefully about it. The details of the bust-up of your marriage will become public record - all of it. Every word you say, every word your ex says, every word the other woman says. It will all be out there and everyone will be all up in your personal business.

Tread cautiously.