Before he died, he loved Goldenflower, and then Sasha, in the Warriors manga.
Tigerstar admired Leopardstar's strength and leadership abilities, but there is no evidence to suggest that he was in love with her in a romantic sense. Their relationship was more focused on political alliances and shared goals rather than romantic feelings.
Darkstripe idolizes and is loyal to Tigerstar, but the nature of his "love" for him is more about admiration for his power and leadership rather than genuine affection. Darkstripe's loyalty to Tigerstar drives him to support and follow him no matter what.
Firestar is a peaceloving leader who does not think 'violence is the answer'. Tigerstar is a ruthless murderer who thinks nothing of peace and love. He is ambitious and is willing to kill to get what he wants.
Thistleclaw, a cat who Bluestar's sister, Snowfur, was in love with and who was also Whitestorm's father mentored Tigerstar. He was the one who made him attack Tiny/Scourge when he was a kit and he was the one who made him so ambitious.
I'm not sure if Goldenflower really did love Tigerstar. He didn't care about her, and only took her and Sasha as mates so that his blood would run in the clans.
I don't think Erin Hunter really tells us in the books. Plus, Tigerstar is so sneaky that we may never know. I think it might have been when he was with ShadowClan and trying to take over the forest, though.
Tigerstar trained Lionblaze in the Dark Forest, manipulating him to become a powerful warrior with dark intentions. Tigerstar exploited Lionblaze's potential and desire for power to further his own evil plans.
Well. In The Darkest Hour (The first series, 6th book), Scourge had killed Tigerstar. Then Tigerstar continued to torture other cats. In The Last Hope (Last series, 6th book), Firestar and Tigerstar have a battle. Firestar then kills Tigerstar and he fades away forever. Firestar then dies after as well.
How Tigerstar and Sasha met.
Kit: Tigerkit Warrior-Apprentice: Tigerpaw Warrior: Tigerclaw Deputy: Tigerclaw Rogue: Tigerclaw Leader: Tigerstar MAIN: Tigerstar
Although Tigerstar did mate with Goldenflower, he did not really love her. It is more likely that he only mated with her so that he could have children, and he wanted to raise them to be like him.
Lionblaze listened to Tigerstar because he was manipulated by Tigerstar's cunning words and promises of power. Additionally, Tigerstar preyed on Lionblaze's insecurities and desire to prove himself, which made him vulnerable to manipulation. Ultimately, Lionblaze realized his mistake and chose to stand against Tigerstar to protect his family and Clan.