Jay Garrick / The Flash

Earth-Two / Post-Crisis / New Earth

 * 1)  Joan Garrick , his initial love interest, and later his wife of many decades. They adopted a son together at one point, who later died.

Arrowverse
In the Arrowverse, the character known as Jay Garrick of Earth-Three is revealed to be a doppleganger of the character known as Barry Allen from CBS' previous series The Flash, making the two, in this multiverse, essentially different incarnations of the same person. Hence, here are Barry's love interests from that show...
 * 1) Iris West -Contrary to her portrayal anywhere else, here Iris appears as an unideal girlfriend who dumps Barry in the first episode.
 * 2) Tina McGee is a scientist who helps Barry fine-tune his powers and become the Flash, then helping him in all his adventures. The two are good friends, and clearly feel for each other, but because this is TV, it never progressed past that in the year the show was on.
 * 3) Megan Lockhart was a private investigator who was hired to discover The Flash’s secret identity. She discovered it was Barry, and her employer turned out to be a bad guy who was later killed. She and Barry took a liking to each other, however. Although she left town soon after, the two would have amorous connections on the two occasions she came back to Central City, the first resulting in her being attacked by The Trickster, and the second to attend the trial of the Trickster. Megan and Barry are seen kissing at the end of the season finale, which, of course, became the series finale. So, even though Tina is clearly intended as his main love interest, one could argue that he “ended” up with Megan.