If your boyfriend likes to read, you may see a little change in his reading material. The material will be related to love and romance!
He may get angry on small things and may show up his anger to you. This is a sign of love. When close towards proposing, boys will not like at all that you are doing something that is going to hurt them.
He will be there for you 24 hours 7 days a week. No matter how you plan your schedule he will adjust himself and never say you that he is busy somewhere else or he does not have time.