No, you're not confused; you're just a victim of 'the change partners and dance' Hollywood social scene.
Norma Talmadge and Gilbert Roland were lovers before and after Joseph Schenk. At the same time Gloria Swanson and her French Marquis (Henri) were married.
1) Talmadge and Schenck divorce.
2) Talmadge and Roland continue on.
3) Swanson and Kennedy connect.
4) Swanson and the Marquis Henri divorce.
5) Constance Bennett marries Henri.
6) Swanson and Kennedy split.
7) Swanson marries Michael Farmer.
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9) Talmadge marries George Jessel.
10) Talmadge and Jessel divorce.
11) Swanson and Farmer divorce.
12) Bennett and Henri divorce.
13) Talmadge and Schenk get back together but do not remarry.
14) Bennett and Roland marry.
All of this took place over 15 years or so but it was only 1 of 100's of scenarios taking place in Hollywood. Most, indeed all of it, was hush-hush and the public never knew any of it until just recently - the 70's & 80's, when they were all dead...
Larry
P.S.- there'll be a test on this tomorrow!!!