1. When Robert Downey Jr. summarized the difference between Steve Rogers and Chris Evans with a perfect meme...and Chris agreed:
Busted. https://t.co/VtnIJtiTIo
2. When RDJ created a perfect meme:
When @ChrisEvans abuses the group text...
3. When Robert celebrated ALL the shippers on Valentine's Day:
Happy Valentine’s Day to all the shippers out there! ❤️😉
4. When RDJ shared this uncanny resemblance...
What can I say? The man knows me. https://t.co/NLJ7e7B0F8
5. ...and this one...
6. ...and then totally tripled down on it...
We all know who the real sheriff in town is @ChrisEvans
7. ...which Chris REALLY appreciated:
This guy....👑 https://t.co/rHj3c8Lcdl
8. When Chris wished RDJ a happy birthday...
Happy birthday to the one and only, @RobertDowneyJr!! (Am I the only one who thinks he’s aging in reverse?) I miss you, buddy!!
9. ...and when he did the same last year, and RDJ called him his "favorite Chris":
@ChrisEvans Many thanks for the kind returns. You're my favorite Chris...
10. When RDJ and Chris squabbled over Ryan Reynolds' affections:

11. When Chris felt very lucky, thanks to Robert:
Releasing your film on Robert Downey Jr's birthday has to be a good sign.
12. When, yes, they were expecting:
Look who I found... And yes, we are expecting... @ChrisEvans @jimmykimmel
13. When Robert's "worst nightmare" happened:
Dammit. @ChrisEvans @chrishemsworth @Renner4Real #AgeOfUltron #PressTour
14. When Chris teased Robert:
Don't tease me, @ChrisEvans.
15. When Robert celebrated April Fools' Day:
Wink wink... #aprilfoolsday
16. When they demonstrated Civil War IRL:
Civil War? #AgeofUltron #PressTour @chrishemsworth @ChrisEvans
17. And, finally, when they recruited us to Team Avengers together:
We want YOU for Team Avengers. #AgeOfUltron #PressTour #Avengerpalooza