Complex sentence: He tells her that they think they're ready to have their first child, but Jasmine tells him that it's impossible for her to have children, sad over the realization, Shawn leaves to go think.
Split into simpler sentences: He tells her that he thinks they're ready to have their first child, but Jasmine tells him that it's impossible for her to have children. Sad over the realization, Shawn leaves to go think.