I have an anglo arab too! I havnt had him long but he seems to be very bonded :) at first he was depressed (missed home I guess). He is so clever too, which makes him easy to bond to I spose. I've looked at his pictures and he does look like an anglo arab :)
You can look at picture of my horse to compare of you want.
I know this is a horse forum ... but I've had this happen with me with two different dogs. One was years ago ... our neighbor's dog would do anything I 'asked' her to do. When she got out of the house, she ran away. I was with my neighbor and her 4 yr old daughter when they picked her up. Mindy wouldn't go to either of them. I walked in and she ran to me with her tail wagging. I knelt down and gaver her a BIG hug ... which was tough because she was flea ridden and my friend refused to treat her or the house. YUCK
Now it's my current neighbor's dog. He LOVES me. He'd live with us and never go back to his 'home' if he could. We just have a bond ... like you say ... people have told me that he bites and nips and has broken skin/drawn blood... he's NEVER behaved that way with me and he does everything I ask him to do. He such a sweet dog ... he's my heart dog. : ? (