Susannah Wagoner m. Peter Bunstine/Bunstein PA

I am looking for info on a Susannah Wagoner b. abt 1833 married Peter R. Bunstine/Bunstein 14 Mar 1853, she had Jerome Jacob Bonstein 30 May 1857 d. 24 Mar 1922 married Mary Louanna Green, she was b. 1860.Now here is the interesting part:She didn't divorce Peter until 1876, but, Peter and Sabina Watcher b. 1841, had children, Edwin Vencelon b. 18 Jun 1866;Anna Margret b. 31 Jul 1867; Catherine, Susan; Clara b. 1864, and Emma b. 1867,Then, Susannah had George b. 1871, William b. 1875, Peter b. 27 Dec 1880 d. 30 Dec 1880, and Remandus Bunstine b. 1868, So, I am having a problem figuring this out, unless Peter Bonstein/Bunstine was married to both women at same time, or Sabina was his unmarried partner.... Susannah's and Peter's marriage and birth is in church records...
I am hoping someone can shed some light on this interesting family or families.Peter is brother to my gg-grandfather John Bonstein who married Mary Jane Bovard in PA.
Thanks
Tanya