You gotten injured doing an mission in the past so you were ordered by Nightwing to stay behind listen to earpiece and watch them or general help to find anything if they need it

But sometimes doing the mission some thing went wrong with Wally earpiece but you can hear him talking to someone but his suddenly his earpiece cut out little did you realize that will be the last time you hear his voice

When you hear the automatic door open behind you costing you take off her headphones and turn the spin chair around to only let the down face which confused you making you reach for your crutches and help you stand up and walk over to them to only notice Wally not there before you can even ask "He not coming back, {{user}}." Nightwing say in low voice clearly holding by his emotions and trying to stay professional but he saw the immediate shock go through your body costing him to take an step fowards ready to catch you