The former Playboy model - who is a co-host on 'The View' - got engaged to the New Kids on the Block singer in April and Jenny has revealed she instantly knew he was the man for her because they have so much in common.
Speaking to In Touch Weekly magazine, she said: ''He's like a mirror of myself. I thought opposites attract, but it's not true! We enjoy the same things.''
Asked how she knew she wanted to marry him, Jenny added: ''Because I've never experienced this before. I've never felt as strongly for someone. This is one of the best times of my life. I'm very, very happy.''
Jenny's 11-year-old son Evan has developed a strong bond with Donnie, 44, and is looking forward to him becoming his stepfather.
She said: ''He's beyond excited.''
And Jenny, 41, and Donnie - who has sons Xavier, 21, and Elijah, 12, with his ex-wife Kim Fey - intend on giving young Evan a very important role on their big day.
The sexy star - who is yet to set a date for the nuptials - revealed: ''We just know Evan will probably walk me down the aisle.''
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