Was he married too? She felt a jealous pang and she didn't understand why. Why would she begrudge happiness to Clark?

that's right, this is before even Linda King showed up. It's funny that Lois gets her first Clark-possessiveness about herself
"What is Clark doing these days?" she asked.
That caught Clark's attention. He lost altitude for a second, but quickly gained equilibrium.
"What happened?" she asked, clinging more tightly to his neck.
Oops?
"Yeah. And why do we have a picture of me and Clark on *our* mantle?" she asked, her voice rising as she was starting to think in some ...interesting directions.
"Well, it's complicated," began Clark, using his favorite phrase when being elusive with Lois.
"How complicated?" she asked, her cheeks flaming. "I mean... there's nothing... unusual between the three of us, is there?"
Michael