Complicated

My boyfriend and me got a house and since we have an extra room a friend of mine is going to rent it out. We both are planning to move asap. And I thought my boyfriend would move in to but he said till next year. Yes there's only two months away but next year comes around the corner and he could say next month. or next week or next year. The purpose of getting our home was so we both had a place. He is very much older then me and he has a son. The wait is so he can transition and help his son understand that they are moving. Also his ex-wife and her family. I don't know about this it just feels werid. I know he isn't doing anything but sometimes I can't help feel how outsiders see this. Things can quickly be misunderstood and i dont know what to do. If i move ill leave my grandma and i dont want to leave alone. I have no idea what to do or feel or understand my emotions are all over and its hard. I did skipped alot of details only for personal reason but please i need some advice.