While this isn't directly related to Donna and Terry's breakup, I'm posting it because we get to see Terry's ex-wife again. It's from New Titans #55, by Marv Wolfman and George Perez.
Flash-forward several years. After giving birth to a son, Robert, Donna gave up her powers to the Titans of Myth and settled down on a farmhouse with Terry. Donna also let the Team Titans, a team of heroes from the future, stay with them.
This is from Team Titans #5. It's written by Marv Wolfman and illustrated by Vince Russell.
Wolfman left the series after #12 and was replaced by Phil Jimenez and Jeff Jensen.
Donna and Terry's arrangement with the Team Titans began to strain their relationship.
This is from Team Titans #16. It's written by Jimenez and Jensen and illustrated by Jon Regis.
This is from Team Titans #17. It's written by Jimenez and Jensen and illustrated by Terry Dodson.
Nightrider, a vampire and a member of the Team Titans, was shot by a farmer when he saw him attacking his cattle.
Terra and Terry end up getting saved by Prestor Jon, another member of the Team Titans.
In Team Titans #18...
Team Titans #19...
In Team Titans #21, Donna returns home. It's written by Jimenez and Jensen and illustrated by Bryan Hitch.
Our next scene is from Titans v2 #25. Though the issue came out several years later, the scene is a flashback which takes place chronologically after Team Titans #21. It's written by Jay Faerber and illustrated by Terry Dodson.
After Team Titans, Donna would join the Darkstars, an intergalactic police force, where she gained new powers.
As a member of the Darkstars, Donna later returned to the pages of New Titans.
This is from New Titans #118. It's written by Marv Wolfman and illustrated by William Rosado.
Then, in New Titans #119...
The court drama continued in New Titans Annual #11. It's written by Marv Wolfman and illustrated by Greg Land. It was around this time that Donna started dating Green Lantern Kyle Rayner.
At some point Donna gained visitation rights with Robert, though I don't know if this happened offscreen or if I'm missing an issue.
This is from Green Lantern v3 #82. It's written by Ron Marz and illustrated by Tom Grindberg.
Then, in John Byrne's Wonder Woman #121...
Donna receives the bad news in Green Lantern v3 #89, by Marz and Darryl Banks.
...and leaves Kyle in #90, by Marz and Chris Batista.
Then, in Wonder Woman #123...
In Wonder Woman #131...
I'm not sure, but I believe the implication is that Dark Angel was responsible for Terry's accident. Essentially, Dark Angel is forcing Donna to live through thousands of lifetimes with horrible tragedies, starting over each time Donna reached her lowest point.
Another flashback from Titans v2 #25 showed Robert's funeral. It's illustrated by Paul Pelletier.
Later, when Donna "died," Marcia showed up at her funeral. This is from Teen Titans/Outsiders Secret Files 2003. It's written and illustrated by Phil Jimenez.
On Donna and Terry's breakup, Marv Wolfman stated "The break up happened in Team Titans after I left it. I disagreed with it and said so, but the writer did it anyway. It was wrong in my mind to do it--Donna and Terry would not suddenly split up that way. They may have split up if we saw a real problem between them but I just had them occasionally have Donna's power come between them--something they would have gotten through. Once the divorce was done though, and I got the character back, I could not simply undo what was done. Hence my following up on it etc. It was an editorial decision that led Donna to Kyle...which I also don't feel was right, but had no real reason to argue. IF Donna split with Terry and Dick was splitting with Kory, I would have very slowly had Dick and Donna get together...which I did suggest in an overview memo."