Regarding the topic of homosexual temptation and homosexual lust, the way I understand it from Jesus’ example that a man having lustful thoughts of a women is committing adultery.
In the same vein, a person having lustful thoughts for another person of the same sex is guilty of homosexual sex.
BTW, my intention is to not demean anyone as I have suffered from SSA and now struggle with adulterous thoughts, which is a mortal sin. However, I don’t feel like minimizing my sin or others will get us on the path of healing from Jesus Christ. We are called to recognize and confess our sins in order to be healed. Paz.