In the comics ( the specifics of the dynamic kind of depends on ur canon but w/e) Both Matt and Foggy have crushes on Karen, and i think Karen has a crush on Matt. i think they got together in the 60's and i semi-maybe-think matt was going to propose (???? idk) it didn't work out but they got back together later on in the 80's before she died.

I'm glad I'm not the only one who was confused because I seriously thought I was missing something (i have a tendancy to just... *shwoop* it all goes straight over my head)
i kind of hope it's just 'everyone has weird confusing feelings for everyone else' (ive had a couple of crushes on people when we start becoming friends and then it fizzzles out maybe it's like that). I kind of hope they don't try and do any iinter-office romance for team avacado's but that's just my personal preference lol.