Seems kinda silly considering they where already over the limit when we allied, also I've been playing for 10 years since I took these and they still didn't send me one.the too many relations penalty is always there if they have too many relations, regardless of whether or not you already have relations.
I mean would you accept a royal marriage offer if you were 7/4 relations?
And if you wait they might send you a marriage offer because you would accept it and AI is funny like that.
Early game austria is always like this, because everyone and their mother wants to ally with him, and he accepts the first 6-8 alliance offers he is sent, which are usually 2 electors, 1-2 free cities, hungary, and a random italian state in the HRE. (here, we see ravensburg as the only free city (because spain took the second free city spot), Brandenburg and Palitinate as the electors, ferrara as the random italian, and then savoy is unusual.)I don't know what the AI is going for, certainly nothing that makes much sense.