Lookin for a soul&r&b song very important?

Question

the song is sang by a woman....it shouldnt be to old i think it came out between 2005-2007 and i only know a few lyrics

You don't know how much it hurts when you're not right next to you


here is a link where you can hear a little of the song it begins at
01:10 min.....


http://youtube.com/watch?v=7aClomEf6Ws

Answer 1

http://www.youtube.com/profile?user=sk8kossy
contact him on here and ask him

Answer 2

im not sure but i think its mariah carey