Did Laverne and Shirley ever express love for one another?

Yes, Laverne and Shirley expressed love for one another throughout the show. This was especially evident in episodes where the two were faced with challenges, such as when Shirley had to move away for a job. Laverne expressed both her sadness at the prospect of Shirley leaving, and her love for her best friend, saying "I can't believe you're really gonna go. We've been together since we were kids. I don't know what I'm gonna do without you."

The two also supported each other through their personal struggles, whether it be Laverne's difficulty in finding a boyfriend or Shirley's trouble with her job or her family. In one episode, Laverne helped Shirley overcome her fear of public speaking. While practicing, Laverne reassured her, saying "Don't worry, you're gonna do great. I love you, and I believe in you."

The two girls also showed their love for each other through their shared sense of humor and their ability to have fun together. Whether they were singing, dancing, or just goofing around, Laverne and Shirley always had each other's back and showed their love for one another in all kinds of ways.