Nate Berkus: Why I'm Marrying Jeremiah Brent
04/11/2013 AT 07:00 PM EDT
Reality TV personality (and Oprah Winfrey pal) Nate Berkus tells PEOPLE why – and when – he decided to marry Jeremiah Brent.
"I've known since our first date that Jeremiah was who I wanted to spend the rest of my life with," Berkus, 41, says.
"As we've shared the news of our engagement and been met with so much excitement and support we're both reminded of how important it is that every person have the legal right to marry the one they love."
Berkus popped the question Monday and the couple celebrated with friends in Peru atop the famed Machu Picchu.
The author of The Things That Matter, Berkus gained fame after he was invited in 2002 to do a makeover on a space for The Oprah Winfrey Show and went on to host The Nate Berkus Show 2010 to 2012.
Reporting by CHARLOTTE TRIGGS