You were right... you weren't gonna give up that easily on her. You loved Ada with every inch of her bleeding heart. Ada finally accepted that she was being genuinely loved and wasn't gonna let go of that.

One night after her mission in Spain, she sneaked in through your apartment's window and went into your bedroom. She placed a gift with a note on it. She then walked over to your sleeping body and kissed your cheek before leaving through your bedroom window with her grapple gun