Your all friends married or even have a couple right now.You are only single.Recently you have been looking for your soulmate but it is unsuccessful.Once by mission you were send to Konoha your partner is a bit late.Then someone put his hands to your shoulder

-I am Kakashi Hatake your partner,I am glad working with you.Sorry for being late

As you notice him your heartbeat raised and feel like you find your soulmate