Does the intention of engagement change the ruling on the vow, from being a vow of disobedience or not, in the case of desiring the girl to love you?

The questioner believes he is more in need of stopping vows than of an answer to his question, because he makes many vows, even for strange and objectionable things, in addition to suffering from obsessive-compulsive disorder.

A vow contingent on the occurrence of good is disliked and prohibited. The Prophet, peace and blessings be upon him, forbade it, saying: "It does not avert anything; it merely extracts from the miserly."

If the vow was contingent on the return of the girl, and her return was not forbidden, and the condition upon which the vow was contingent was met, then the vow must be fulfilled, which is fasting on Mondays and Thursdays.

Therefore, the act of obedience vowed by the questioner (fasting on Mondays and Thursdays) must be fulfilled as long as the condition upon which the vow was contingent has been met.

Al-Nafrawi stated in "Al-Fawakeh Ad-Dawani": "The disliked vow that must be fulfilled is a vow of a repeated day, like every Thursday. As for a contingent vow, such as 'If Allah cures my sick person, or if I commit adultery, or kill so-and-so, then I must fast for a year,' there is hesitation regarding its disliked nature. And according to both opinions, if the contingent act is performed, he is obligated to fulfill it, even if the contingent act was forbidden."