Complex sentence: Though he had many romances during the shows run, Alan Shore, seemed to only be speechless and "weak-in-the-knees" around Lorraine, suggesting that he could have indeed fallen in love with her.
Split into simpler sentences: Though he had many romances during the shows run, Alan Shore, seemed to only be speechless and "weak-in-the-knees" around Lorraine. Meaning that he could have indeed fallen in love with her.