Answer:
The answer is "Proximity Attraction".
Step-by-step explanation:
According to the theory that was proposed by Leon Festinger in the 1950's, the romantic attraction between two people can be explained by how close they are to each other physically. The more time people spend together or be in close proximity of each other, the more attracted they start to feel to the other person because of the constant exposure. The situations given in the question are examples to this attraction type which is the Proximity Attraction.
I hope this answer helps.