Is it just that they won't let you spend the night at your boyfriends? Could you possibly talk to them, or reason with them about this? Or is it an absolute no?

What about his family? Won't they find out about these arrangements? Make sure to inform your "covers" of your plans, you don't want your parents calling them and having them say you're at your boyfriends (perhaps have them say you're in the shower, and they can call you and tell you to call your parents?).

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So when you're happy (Hurray!), or sad (Aw!),
Or frightened (Eeek!), or mad (Rats!)
An interjection starts a sentence right.