I've received my share of calls from young Muslim couples and know some common themes. If you're being offered any of these, say no and end it.
1) Secret Nikahs: Not only is this against the command of the Prophet (peace be on him), they never work. I've seen horror stories!

These commands are for when the man is the leader of the house and can ensure that the children will remain Muslim. Do not risk your children's Iman!
I really see many couples in such marriages ending up resenting their partner.
I would not recommend this 95% of the time!
Not only is your boyfriend/girlfriend haraam (cause that's what they are), why invest your heart when the person isn't ready?
In the meantime, they don't deserve you. Don't be friends and don't make any promises.