I was hoping you had been sitting on the sofa next to her, while you both are swiping on tinder on your phone. Completely unknown to each other.
A little while into it you see her on tinder and...
B: why are you in tinder!
B: I just swiped you!
GF: are you on tinder?
GF: I just swiped you to. You didn't match
B: I think we should break up