How to handle our reconnection....?

My gf and I moved in 2 weeks after knowing each other. 2 months went by and things were great. I have since moved out and we want to reconnect. she lives in Illinois and I am in Indiana until I can get back to Illinois. we were having some issues (me being childish and she said that I acted like the girl in our relationship at times) and we planned on getting married in may...this is after knowing her 1 month we planned this. I moved out and haven't seen her in 3 weeks. The deal with everything is that I moved in 2 weeks after knowing her. she has 2 kids, which i knew and a very abusive ex. I didn't know all past issues and ex's issues until i moved in. Things became so overwhelming that I felt tons of pressure in making every single thing right for the kids, my gf and limiting the ex....long story short. anyways, we decided that living together wasn't the best for all at the time. I am going to c her tomorrow and we are going out to eat, then c a movie. She wants to reconnect but I've done some shitty stuff that I totally regret and feel bad about. How should I handle tomorrow night? I want to make it fun!!! She likes pink. I thought of bringing a pink rose, dancing for a few seconds in the restaurant, laugh and smile and have a positive, good time. she told me that she wanted to take it slower because so much stuff was messed up..me moving in, the pressure on me, and me being childish, frustrated and argumentative.she wants 2 reconnect, but didn't want to get attached 2 soon. I have since cleaned up my act and want a mature, adult relationship with her. Any suggestions about tomorrow night? I would greatly appreciate all answers! thank you.