Wonderful as always. And so many times #3. However #1 is not a behavior, whether it’s toxic only particular relationship can tell. But #1 is the way the person feels and not in a way that’s manageable by shrinks. When real love takes you, the other person IS your everything. Don’t take my word for it (although once in my life I did felt that way), read any poetry. It really doesn’t mean, that it’s the ONLY thing, just most joyful thing.