Well, personally I don't think you were overreacting, I would feel a little neglected too. What I would say is something along the lines of

I'm quite hurt that you didn't congratulate me, I think I have done really well and I'm proud of myself. You have hurt my feelings by not mentioning my achievemenets. I'm so proud of you and what you have done and have always supported you, now I would lilke your support?

Just my opinion, and Congratulations, that is some achievement and good luck in the future .

Sometimes it's kind of easy to get takin up with our own stuff, I doubt he meant to hurt or ignore you, I'll bet he will be mortified when you tell him you were upset much love, Ophelia xxx