We were trying to find the catalyst in the middle of a full on invasion. Thessia was lost and we lost the catalyst information to Cerberus. [Really it was failure, cold and hard all the way around but Liara didn't feel like dwelling on it.] We have to get the catalyst before we can even think of making a final stand on Earth, but now this is just a huge mess.

The only theory I had was that it might've been the reapers tampering with the relays. It'd explain when we ended up on Omega.

[But it didn't explain how Jack was here then.]

Something very strange is going on.