Bouchard would have still been in the French capital had she not lost to Timea Bacsinszky in straight sets after initially downing German Laura Siegemund in her opening match.
Bacsinszky's love affair with Roland Garros continued when she swept aside the struggling Canadian 6-4 6-4 in the early stages of the year's second major.
A semi-finalist last year where she lost to eventual champion Serena Williams, the Swiss eighth seed trailed 1-4 in the first set before she took control, winning 10 games in a row to serve for the match at 5-0 in the second.
Bouchard, a French Open semi-finalist in 2014 - the year she rose to fifth in the world - staved off defeat by winning that game and she saved a match point on her own serve to pull back to 5-2.
The fight-back continued with another break of serve and a hold to get to 5-4, but Bacsinszky finally held firm on her serve at the third time of asking to seal the win.
From a career-high ranking of seventh at the end of 2014, Bouchard slipped out of the top 40 in 2015 and struggled with an eating disorder she says she has since conquered.
While she will be watching the final of the French Open on TV - if at all - Serena Williams will be looking to raise a grand slam trophy for the 22nd time in her career.
Williams outlasted gritty Dutchwoman Kiki Bertens in two tough sets on Saturday (NZT) to reach the final, where she will play fourth seeded Spaniard Garbine Muguruza.
Defending champion Williams, who won the first of her three Roland Garros crowns in 2002, started slowly for the second day running, her early play littered with the unforced errors that had characterised Thursday's laboured three-set quarter-final win against Kazakh Yulia Putintseva.
The champion was broken in the first game by her unseeded opponent who, entering the contest on a 12-match winning singles streak in all competitions, showed no sign of nerves in her first major semi-final.
Williams eventually took the first set 7-6 on a tiebreak that she edged 9-7, settling into a more comfortable rhythm in the second set, which she won 6-4.
Aussie Sam Stosur's dream of adding a second major to her resume was crushed by the monster groundstrokes of Spanish sensation Garbine Muguruza, who blew Stosur off the court 6-2 6-4 in the semi-finals.
But despite the one-sided end to her campaign, Stosur proved with victories over world No. 6 Simona Halep and 11th seed Lucie Safarova that she's far from a spent force.
"Certainly I don't feel like the tennis I have played is out of myself or something that I'm not able to replicate," Stosur said. "I mean, I've got to be able to do it, but I certainly feel like I'm able to continue on the form I have showed this week."
Having started the tournament ranked 24th in the world, Stosur will now climb to 14th - and would have cracked the top ten had she downed Muguruza.
The rankings rise puts her in the box seat to get a top-16 seeding at Wimbledon later this month - meaning she would not face one of the top eight seeds until the fourth round.
Stosur will now turn her attention to the Eastbourne International, which starts on June 19.
