Daniel Radcliffe usually prefers to keep his personal relationship with actress Erin Darke very private which makes his recent public outings with her even more intriguing. He is no 'rube' and thus knew that the media and his fans would become very excited when he and his long-time partner were photographed walking in New York City and at the premiere of her new play "The Spoils" (People Magazine - June 3).

Three years is a long-time for a couple of any age to date, especially in the entertainment industry and some of his fans on social media see his 'showing off' of his girlfriend with their walking down the streets of New York, hands interlocked along with his public support of her at the opening night of her play as him getting the media and fans comfortable with her at his side.
Daniel Radcliffe in 2015 will appear opposite James McAvoy as the star of the movie "Victor Frankenstein" and will be seen in at least three big-screen projects in 2016. As such there will be many opportunities in which he will likely be walking on the red carpet and it seems as if he will be having the company of his girlfriend who might be his fiancee by the time his movies are released.

Entertainment fans, in particular those female fans, love seeing a leading man walk the red carpet with his partner as it shows him as someone stable and capable of maintaining a personal relationship, something that enhances the popularity of leading men with the people who go to movies most: women.
Daniel Radcliffe in 2014 spoke effusively about having met his best friend in Erin Drake and his recent public appearances with her suggest that they are going to make many more public appearances in the future and when they do his partner's hand could very likely be weighed down by an engagement ring.
An ex-Harry Potter actor looking happy in love: Daniel Radcliffe.
Daniel Radcliffe in conversation with JK Rowling