Nate Heywood

Nathaniel Heywood is a museum worker at the Central City Bureau Protecting Remnants of All Times. He is the son of Hank and Dorothy Heywood and the boyfriend of Amaya Jiwe, with whom he leads an open relationship. He is best friends with Ray Palmer.

Prior to the Series
Some time during his youth, Nate met Hartley Rathaway when their parents met up for business and sent their children off to spend time with each other. Nate, however, was unimpressed by him and the two never became friends.

Before the events of the series, Nate has met Amaya Jiwe and started dating her. When Ray moved to Central City, the two of them became best friends.

At some point Nate has been hired by Rip Hunter to work at the Central City Bureau Protecting Remnants of All Times.

Presumably through Amaya he has met Mick Rory, as the two have become friends at some point prior to the series. He has also met Sara, but it is not clear when exactly. This has most likely happened via Ray.

i just wanna have fun (and get rowdy)
Nate has been the first person Ray told about his threesome with Felicity and Oliver. He passed it on to Amaya.

A few weeks before Christmas he hung out with Mick and Snart, though it's not known whether this was his first time meeting Snart. The two did not know about his financial status at the time, so it has probably been at Amaya's apartment.

in the middle of the night, in my dreams
When Ray brought Charlie to Central City, they hung out at Nate's place alongside Amaya, Sara and Mick. Learning that he is a millionaire Mick decided that he would sleep with him at some point, which happened off-screen.

worked too damn hard for this
In late April 2018, Nate was abroad for a work trip.

Together with Ray and Amaya he watched Avengers: Infinity War and discussed it with them aterwards.

During June, Nate and Hartley hung out together and caught up on each other. In the middle of the month, Nate attended Central City Pride together with Amaya and Ray, joining the Groupchat on Queen Consolidated LGBT Foundation's float.

At the end of June, he and Sara had a discussion about ancient epics, demonstrating that they have talked to each other frequently.

When Snart got hired at the Bureau in July 2018, Nate was assigned to show him around. It was then revealed that half the Groupchat did not know he worked at the museum. As they work together, it becomes more clear that Snart does not like Nate very much and finds him annoying.

head in the clouds (got no weight on my shoulders)
Nate was at Hartley's and Cisco's welcome home party in the middle of August 2018 when they returned from Puerto Rico. Here he performed the Thong Song.

Trivia

 * Nate is a haemophiliac. As such, he grew up isolated. His parents' worry put tension on their relationship.
 * Mick's nickname for him is 'Pretty'.