Gilt and Barrow

[blanchardhogs]

Question?

I have a gilt and a barrow. We have them in their individual pen but they are getting attach to each other. We walk one first same routine and then the next but they keep wanting to come back to each other. The pens are right next to each other.

Any recommendations to what to do to make them not so attached or should i cover the gate/panel separating them? Please and Thank You in advance.