It's no good asking whether or not you should be hurt. "Should" has nothing to do with feelings. You should have handed the camera to someone appropriate and said, "Hey, get a picture of FIL, my husband and me." Then you grab hubby and pull him and you to standing behind FIL, and you give a big cheerful smile. Use that approach in the future.

Maybe husband is being a bit negligent about documenting in film your presence at the parties. Speak up next time and get the result you want. You might set a precedent that changes the "party" dynamics. Soft spoken, self-effacing, deferential people do tend to get ignored at parties. That's why party people are called party animals.