Hi Welcome to HCM,
Salty Transparent fluid is normal secretion of an Unmarried women. It is due to "Sucking Reflex", When a Baby (Lactating mother) or partner sucking the Breast the
nerve fibers around the
areola send the message to the
Pituitary gland, Pituitary gland releases
Oxytocin Hormone, it causes contraction of Lactating duct and causes secretion of milk in Mother and Transparent salty fluid in non lactating women it is a normal physiological process .
Come to your Questions,
Answer-1) No, Breast is a modified
sweat gland transmission of HIV through sweat and saliva is very less.
Answer-2 ) Nothing will happen, because drinking breast milk more than 6 months will cause 12 -20 % HIV transmission to the child.
Answer -3) Decayed tooth minimal chance of transmission.
If your partner is free from AIDS like symptoms ignore your problems.
Still u have fear Please do HIV antibody test.
Hope you got the Answers.