I am searching for i song i heard on my hollyday in spain... at the swimmingpool

it was a verry relaxing song with a female vocalist and it was electro/house/chill genre (not a classic song)

I oonly know the lyric from the chorus a bit it was like this:
and iiiiiiii will always love you for ever and ever....

somthing like that
my descriptions arren't verry clear but i hope some one can help me out !