Complex sentence: After Spider-Man rescued her mother from the Green Goblin, Felicia actually developed a crush (which later turned to love) on Spider-Man since she knew she could not have a relationship with Spider-Man, she dated another man named Jason Philips.
Split into simpler sentences: After Spider-Man rescued her mother from the Green Goblin, Felicia actually developed a crush (which later turned to love) on Spider-Man. Then she realized that she could not have a relationship with Spider-Man, she dated another man named Jason Philips.