“…Indeed, external providers of support help reduce people's distress by consoling them and helping them to resolve their problems (Frone, Russell, & Cooper, 1995;Holahan & Moos, 1981;Serovich, Kimberly, Mosack, & Lewis, 2001) and, as just noted, people are likely to respond to opposition more constructively when their regulatory resources are not depleted. This idea is consistent with Finkel and colleagues' (2014) suffocation model of marriage that posits that neglecting nonromantic relationships can harm romantic relationships because nonromantic relationships buffer intimates against stresses associated with the romantic relationship and thus can facilitate constructive responses to relationship problems (see also Jackson, Kennedy, Bradbury, & Karney, 2014;Keneski, Neff, & Loving, 2018). In contrast, couples may benefit most from exchanging cooperative behaviors when they lack other sources of support because the numerous benefits of supportive behaviors may be more necessary.…”