I haven't been able to form any alliances at all since 1.3 came out.
I'm trying to play through the Dread Lords campaign on "Tough" difficulty, and was on the mission "Hearts and Minds" where you have to either form an alliance with the Torians, or culturally assimilate them. To get to this mission you must fail the previous mission of rescuing the Torian leader from the Drengin.
Because of my failures at getting alliances in sandbox mode as of 1.3, I was determined to ally with the Torians in the campaign. I chose "good" ethical allignment and set up as many trade routes as possible with them littered with star bases. I had a trade income of over 600 BC a turn with the Torians.
I was also sure to keep my military might higher then theirs to earn the +military strength factor. Eventually I also had the + historic friendship factor. I reserached up through all of the diplomacy techs. I continuously gifted them money and techs, or made trades when they had something of any value. During all this time, I never had relations get any better then friendly.
Eventually, relationship status between us started to deteriorate. They built starbases close to my territory and I had the - close borders status. Also, my continued skirmishes with the drengin brought both mine and the drengin's fleets lower than the Torians. This caused a - military strength factor.
Frustrated at this point, I raced through the influence tech branch, built some maxed out influence bases, and converted all the Torian planets in under 25 turns. About 20 turns later I annhilated the Drengin.
My questions:
What more can I possibly do to get that alliance? My only thoughts are that by gifting them so many things I insulted them by thinking they needed my "humanitarian aid." Is the AI that complex in this game? Is there something I'm missing here? Has anyone else been able to get an alliance since 1.3 came out?