Foundation-less frame comb broke

The whole story:

3 weeks ago I was in the brood box doing a check. I took the frame on the side out and leaned it up against the front of the hive (something I learned in some video/from a beekeeper/somewhere in my self taught beekeeping) so I could easily pull the rest of the frames out. However where ever I learned this from perhaps doesn’t use frames without foundation. The comb that the bees built was heavy and it slowly broke off as I was looking at the other frames. Because my frames (from flow hive) are foundation-less, it was very heavy full of honey and brood, and the bees had not completed the entire comb (it was not attached to the bottom of wooden frame) is why it broke. It was devastating and I’m a beginner and it made me cry. But alas that’s what happened. My question is:

I see the bees have not rebuilt this frame. What would you experienced beekeepers do at this point? I just took of the honey super.

Thank you for your help. I know it was a poor mistake