Animals in dreams are always a representative of some primal trait within yourself. Often, the trait relates to the opposing gender within yourself (being female, this would be the masculine traits in your personality).

To understand the horse, you first have to address what horses, as animals, represent to you...

Common knowledge regarding horses to consider ::
-- Horses are highly intelligent animals, that have come under domestication. They weren't, however, always domestic animals. They are often seen as loyal and caring, too. Wild horses often represent something unmanageable and frightening. The fear is in that they cannot be tamed, but in many scenarios and stories the wold horse simply needs to be better understood. --> To get the best understanding you have to answer the question yourself, though.

COnnecting the window and the horse, there is this mysterious person, whom you give no name or face. The person is luring you out of your building, but you are saved by... "The Bad Wolf"??? ((I'll admit here, I don't know the reference or name...)) What I see here is that you're finding safety in your primal/instinctive side. the "wolf" has taught you to calm a horse and ride it to safety.

--> What was making the horse angry? How did you calm it?
--> Is there some voice you're following that you aren't sure you can trust? (I laugh here, because this could literally be anxiety over the interpretations you're getting here : voices without faces to go with it...)

Buildings typically represent the dreamer as a whole physical being...or aspects of their life that have been segregated. Here we see you trying to reconnect with your family - and this detail that your dad and mom are separated as well (are they divorced/living apart?)... Here again, we find an antagonist taking the form of animals. I'd be willing to throw in a bet that you're fighting your intuition on this. Instincts and intuition are often represented as animals.

Then we have your dad running into a boogeyman (textbook definition for the personification of the Shadow Self). The name "tiptoe man" has a lot of connotations... IS there an issue your family hasn't wanted to address head on? Something they've been "tiptoeing around"???