Should i be offended?

OK so I wouldn’t say that I’m the girl that is only friends with guys but I do have a lot of guy friends. So on two separate occasions two of my close friends (who aren’t even friends btw) has used that cliché romcom ass line of “if both of us aren’t married in 5years promise we’ll get married” I wouldn’t normally take it seriously but both of them looked me dead in the eye with the most serious look on their face so I don’t know other way to take it lol.

a little background we’re 25 and a lot of our friends/mutuals are getting married and having kids so that’s why the topic is even brought up, I don’t know it’s just the way I was asked to promise was giving they don’t expect me to get married. Half of me is thinking maybe I am showing insecurities here and the other half is thinking are they for real right now? I honestly only had this thought once the second guy friend said it. What do you think? Am I overthinking it?