I am having problems with my first boyfriend.
My relatively new boyfriend is meeting his ex-girlfriend next weekend.
They are in contact a lot - lots of messaging. But nothing really inappropriate, nothing mushy or loveydovey or sexual. Just chatting.
They are meeting up because she wants to get some things from his house. He told me and I said that's fine.
Because of the time he spends on his phone, I looked at their messages. He texts her the most out of anyone on his phone. He also calls her "babe" and a nickname he made up for her.
He's also said he is going to bring her the Christmas present he bought her, and some other bits he "picked up" for her since they split up 
I know right before we got together they had sex. It wasn't when we were dating, but he told me about it and kept saying the breakup was messy.
We've since argued about this, because I said it wasn't appropriate to be giving her gifts. He's basically said I am controlling and weird, and that I don't know how to be mature
He's older than me, and he said in time I will learn this is normal.
AIBU to think it's not normal to give your ex-girlfriend Christmas gifts?