LIbrans help!!! When you break up with a partner, i know libras will move on and?

Not have any kind of relation with the ex, except a politeness one as much. But what if that Libran who broke up with you searched for your support, and tells you he misses everything about you, that u full him and with others he felt empty, that it was not for him/her. What if that Libra is there for you, also, when you need him/her?