We are going to do something simlilar this weekend. My wife and toddler son will be in F (2 seats) and I will be in Y (1 seat) if my EUA doesn't happen. They are in the last row of F and I am in the first row of Y, so any disruption should be minimal.
Last time we flew I was in F and they were in Y. The FA up front teased me and sent back a glass of wine for her. Again, she was in the front of Y and I was in the back of F.