Whether they turn into a romantic couple in season 3 or not, these guys' interactions are a ton of fun and I love seeing their characters develop! Thanks for the awesome video, Emily.
The reason I think it's real is because Impulse came from a dark future, and the person who has become the closest to him is Blue Beetle. The writer of this show has said there are characters of different sexual orientation in this show that get a lot of screen time. Also, the writer has also joked about Blue Beetle and Impulse kissing in the last episode. That is why I think it's already canon.