I don't know how fast is too fast.. Maybe nothing's too fast, maybe it takes time, like a year. Each time I've been proposed to, I felt like it was too fast. One was after a month, one after 8 months, and one after 4 years (4 years of knowing me, bu not 4 years of dating). The 4 year one was a complicated one, it wasn't because of time spent getting to know each other.