Video translate

[lyricshun]

Someone can help me. I would like to translate this video, but I do not understand what they say. Someone would write in English?
youtube.com/watch?v=G141By5qrr0
youtube.com/watch?v=mHp_jdX5RPI

[SlickVic9000]

1) "You've already given me a lifetime of happiness. Will you let me spend the rest of my life trying to give you the same? Will you marry me?"

2) "(Too faint to hear) really, really, really nicely...and basically, what I want to say about this song is that (ummm) this song really tends to exemplify you and Isaac's relationship...It really does to me...so (ummm) here it goes."

[lyricshun]

SlickVic9000 Thank you very much!

Original video: youtube.com/watch?v=5_v7QrIW0zY