"And if you don't love me?" is a question reflecting vulnerability and concern about love and acceptance. The response, "He loves you," offers reassurance and affirming comfort in the face of doubt.
The dialogue continues with, "What if not?" expressing lingering fears, but is met with a dismissive attitude in "Tight, then who cares? You will not lose anything that you have not lost anymore." This suggests a perspective of letting go of fear and trusting in love despite uncertainties.