In fictional relationships, there's a gray area between a Destructive Romance, a Friendly War and Romanticized Abuse.
And, after 14 seasons, you can bet almost everyone dated everyone.
This was one of those "didn't know we liked it until we saw them together" pairings, because Jay and Manny surprised us all.
They made each other better people and were even engaged at one point.
They are constantly screaming at each other or worse, and yet the characters insist they like each other.
Very often, the only indicator of the characters' affections for each other will be their jealousy when the other shows an interest (real or imagined) in a character outside of their tango.
Whether you found Emma’s environmental causes annoying or not, you can’t tell me you didn’t love her.