So you were going to look at houses far away and your kids changed your mind as they liked family time?

This constant chopping and changing is so unfair to the kids. You do realise when you spend time together they will think you are getting back together dont you? Especially as you claim she looked at you different, was warmer etc..

None of the way you are dealing with this is helping them. As others here have said thats the sad part what you are putting them through without realising it