В мае 2016 года Хейнс совершил каминг-аут как гей<ref>{{Cite news|title=Colton Haynes gets honest about life after 'Arrow'|author=Snetiker, Marc|url=https://ew.com/article/2016/05/05/colton-haynes-interview/|website=[[Entertainment Weekly]]|date=2016-05-05|lang=en-US}}</ref>.
В мае 2016 года Хейнс совершил каминг-аут как гей<ref>{{Cite web|url=http://www.ew.com/article/2016/05/05/colton-haynes-interview|title=Colton Haynes gets honest about life after Arrow|author=SNETIKER, MARC|date=May 5 2016|publisher=[[Entertainment Weekly]]|lang=en}}</ref><ref>{{Cite web|url=http://www.femalefirst.co.uk/celebrity/colton-haynes-happier-now-come-gay-944475.html|title=Colton Haynes: I'm Happier Now I've Come out As Gay|date=6 May 2016|publisher=femalefirst.co.uk|lang=en}}</ref>. В марте 2017 года он объявил о помолвке со своим партнером, флористом Джеффом Литамом<ref>{{Cite news|title=Colton Haynes Gushes Over New Boyfriend Jeff Leatham With Cute Selfie|author=|url=http://www.mtv.co.uk/colton-haynes/news/colton-haynes-gushes-over-new-boyfriend-jeff-leatham-with-cute-selfie-aw|work=MTV UK|date=february 20, 2017|accessdate=2017-03-13|language=en}}</ref><ref>{{Cite news|title=I SAID YES!!! 💍💥❤️ @jeffleatham https://www.instagram.com/p/BRjCXv5jdH-/|author=|url=https://twitter.com/ColtonLHaynes/status/840986780568604673|work=Twitter|date=12 мар. 2017 г.|accessdate=2017-03-13|language=ru}}</ref>. Они поженились 27 октября 2017 года<ref>{{Cite news|title=Colton Haynes and Jeff Leatham Are Married!|url=http://people.com/tv/colton-haynes-jeff-leatham-married/|work=PEOPLE.com|date=2017-10-28|accessdate=2017-10-28|language=en-US}}</ref><ref>{{Cite web|url=https://www.instagram.com/p/Ba2bbsLDnM7/|title=Публикация Colton Haynes в Instagram • Окт 29 2017 в 11:36 UTC|publisher=Instagram|lang=ru|accessdate=2017-11-06}}{{Недоступная ссылка|date=Июнь 2019 |bot=InternetArchiveBot }}</ref>.
МатьВ Хейнса,марте Дана,2017 умерлагода вХейнс результатеобъявил циррозао впомолвке мартесо 2018своим годапартнёром, флористом Джеффом Литамом<ref>{{Cite news|title=Colton Haynes'MotherEngaged Hasto DiedBoyfriend AfterJeff LiverLeatham: ComplicationsSee the Romantic Pic!|author=Bueno, Antoinette|url=https://www.etonline.com/news/212715_colton_haynes_engaged_to_boyfriend_jeff_leatham|website=Entertainment 'I'mTonight|date=2017-03-12}}</ref>. inОни aпоженились State27 ofоктября Shock'2017 года<ref>{{Cite news|title=Colton Haynes and Jeff Leatham Are Married|author=FernandezGomez, Patrick; Corinthios, AlexiaAurelie|url=https://people.com/tv/colton-haynes-motherjeff-cirrhosisleatham-kidney-failuremarried/|workwebsite=[[People]]|date=20182017-0310-2327|languagelang=en-US}}</ref>. В мае 2018 года Хейнс подал на развод с Литамом<ref>{{Cite news|title=Colton Haynes divorce: Actor splits from husband Jeff Leatham after just six months|author=Mann, Sebastian|url=https://www.pinknews.co.uk/2018/05/09/colton-haynes-divorce-actor-splits-from-husband-jeff-leatham-after-just-six-months/|work=Pink News|date=2018-05-09|language=en-US}}</ref>, однако пара примирилась перед первой свадебной годовщиной<ref>{{Cite news|title=Colton Haynes' 1-Year Wedding Anniversary Tribute to Jeff Leatham Will Make You Swoon|author=Grossman, Lena|url=https://www.eonline.com/news/981253/colton-haynes-1-year-wedding-anniversary-tribute-to-jeff-leatham-will-make-you-swoon|work=E! News|date=2018-10-27|language=en-US}}</ref>. В декабре 2018 года Хейнс подал на развод во второй раз<ref>{{Cite news|title=Colton Haynes Officially Divorcing Jeff Leatham 2 Months After Celebrating Anniversary|author=Ungerman, Alex|url=https://www.etonline.com/colton-haynes-officially-divorcing-jeff-leatham-2-months-after-celebrating-anniversary-116062|work=Entertainment Tonight|date=2018-12-18|language=en-US}}</ref>. Бракоразводный процесс был завершён в августе 2019 года<ref>{{Cite news|title=Colton Haynes and Jeff Leatham finalize divorce|author=Bacardi, Francesca|url=https://pagesix.com/2019/08/08/colton-haynes-and-jeff-leatham-finalize-divorce/|website=Page Six|date=2019-08-08|lang=en-US}}</ref>.
Мать Хейнса, Дана, умерла в результате цирроза в марте 2018 года<ref>{{Cite news|title=Colton Haynes' Mother Has Died After Liver Complications: 'I'm in a State of Shock'|author=Fernandez, Alexia|url=https://people.com/tv/colton-haynes-mother-cirrhosis-kidney-failure/|work=[[People]]|date=2018-03-23|language=en-US}}</ref>.
