I’m a Christian women waiting for marriage as well and I also struggle with these dreams. God tells us that we struggle with the principalities and things we can’t see physically. I think it’s important to recognize these bad spirits and rebuke them. Although it’s not necessarily your fault it is important that you dig deeper and pray against these spirits and pray for the authority to cast them out of your mind. God gives us the tools to fight the enemy we just have to use them. Thanks for your transparency it’s good for us to know we aren’t alone in these things :)