similarity in partners may not be result of selection but convergence of beliefs and values through communication
complementarity
may not be selected for but developed due to each partner finding their role within relationship, issues of correlation not causation
temporal validity
filters are now starting to break down, virtual relationships lack gating that filters like social demography used to provide with apps like tinder not filtering for social class, ethnicity or education
temporal validity
with apps like tinder it could be argued a greater focus is on physical attraction
strength
by including benefits of other partner in providing for emotional needs and complementing potential failings, links to social exchange theories of relationships more than just physical explanations of attraction
