I heard this saying,that if you don't breastfeed as much as you can...Baby won't grow up to be close to you. Is it true?

This is definitely untrue. It is of course good to breastfeed baby as long as you can. Not latching him doesn't make you less closer to the baby. Don't forget that the baby was in your womb for almost 10 months. The bonding is already there and is so strong.