i don't think that that line necessarily signifies that sugna will be well loved or well respected in her new life and here's why:
that line is from a song where the girl sadly sings about her own marriage trying to make her grandfather think that she is happy with her impending marriage to someone who is considerably older than her. the song tells about how she will rule her new home and be very happy so he should not be sad but see her off happily as this is also the tradition. in reality, the character knows she will be ill treated and will lead a very sad life. thus, all the lyrics are actually somewhat sarcastic