It's been like this for about 12-18 months now. He's totally fine when it's just me, but if DP is around he just wants to be with him and pushes me away. It doesn't happen every time but it happens an awful lot. It's utterly heartbreaking and I don't know how to handle it. DP is away for work a bit, generally a night or two a week, but he's been around a more lately. I doubt there is anything I can do to change DS' preference for DP, but I really need to know how to handle it better. I try so hard not to let it upset me, especially in front of DS, but sometimes it's hard. I don't think DP quite understands just how upsetting this is.