@AnkitSharma And even it had been a more major role, I haven't counted all the people who have shown romantic feelings toward the opposite-sex in the MCU, but I'm pretty sure it's a lot more than 10. So the representation of non heterosexual characters in the MCU is way off from reality if this was the first character shown to have a same-sex love interest.
Like, on the side of characters who've been shown to be romantically interested in the opposite sex, we've got: Thor, Odin, Jane Foster, Freya, Loki, Peter Parker, MJ, Tony, Pepper, Steve Rogers, Black Widow, Hawkeye, Hawkeye's wife, Captain Marvel, Yon-Rogg, Gamora, Peter Quill, Gamora, Peter Quill's dad, Peter Quill's mom, Bruce Banner, Visión, Wanda, T'Challa, and Ant-Man, the Wasp, Valkyrie, probably the Wasp's parents, who knows who else.