Spicy Marinated Feta With Grilled Pineapple

Name: Spicy Marinated Feta With Grilled Pineapple
Ingredients: 1 (6- to 8-ounce) feta block; 1/4 cup extra-virgin olive oil; 1 teaspoon fresh thyme (plus more to garnish); 1/2 teaspoon red pepper flakes; 1/4 teaspoon fennel seeds; Kosher salt and freshly ground black pepper, to taste; 4 thick rounds of pineapple, core intact, sliced in half; 1 loaf of bread, such as a baguette, brioche, or focaccia; 1 tablespoon extra-virgin olive oil, divided; 1 garlic clove; Fresh basil leaves, to garnish; Edible flowers, to garnish (optional)