I could have written the first couple of paragraphs almost word for word, except I'm not sure I would have the words to do it. I think the fact that you've got as far as understanding the emotional 'buffer' is a real step forward for you.
What makes you think this feeling might get out of control? Does it feel as though it is? Can you find someone IRL with whom you can confide?
The computer is filling the emotional void for you which needs to be 'tackled' somehow - by a deeper relationship with God through prayer and through relationships with others - perhaps in your church but not necessarily. It could be that, despite your worst fears, you need to allow yourself to express your feelings a little more openly. Maybe you have a crusty exterior which doesnt allow you to be yourself enough? just guessing of course . . . .
Above all though, dont be afraid to love It's what we are called to.