What is the ruling on disclosing feelings of admiration and the intention to marry in the future to a girl, without engaging in a forbidden relationship, given the current inability to propose to her?

What is known today as a "love relationship" between young men and women is not sanctioned by the Sharia. It is a gateway to tribulation and corruption. Marriage is the ideal solution for those who are in love. If marriage is not feasible, then they must disengage from this attachment. Whoever cannot marry must be patient and maintain chastity, and beware of the whisperings of Satan and conversing with girls.