Re: he pulls away!
You could try keeping your finger 'at the ready' to pop the suction when your lo starts to pull away.
Is it at the end when he pulls off- like is he done eating when he does it, I mean? My lo did that in the beginning. Actually she did it until she got teeth at which point it started really hurting and I had to make her stop. I think she was doing it to clamp down on the nipple to 'shut off' the flow.
“We are not put on earth for ourselves, but are placed here for each other. If you are there always for others, then in time of need, someone will be there for you.”