I have been dating my boyfriend for 3 years now and only stay overnight with him on some weekends since we both have 17 yo daughters. Mine is ok with the relationship and his is not. I have routine visitations with my daughter every other week and his comes and goes whenever she pleases. We stay at my place on weekends when I have my daughter but if his daughter shows  up at his house he has to leave. She demands that he come home when she decides to mysteriously show up.