Boyfriends coming home from jail...ADVICE!?

He's been in prison for the past 2 1/2 years and halfway house for 4months. He is coming home on Friday and everybody keeps telling me its going to be different so I'm wondering what should I expect? I always go see him and he seems normal just gets irritated quicker. Also I want to do something really romantic for him...any ideas? Also how do I get my daughter who's 4 used to calling him daddy? She usually calls him by his nickname and sometimes daddy when I correct her but its like she isn't connecting daddy like she did with mommy (yes he's her father). If that makes sense! ADVICE NOW PLEASE