Specifically, regardless of gender, we formulated one hypothesis: OXTR/rs2254298 A-carriers and OXTR/rs53576 G-carriers would show a higher number of posts and values of SDI when involved in a positive and favorable relationship with their partner (lower scores in the ECR-R dimensions Avoidance and Anxiety) compared to OXTR/rs2254298 G/G homozygotes and OXTR/rs53576 A/A homozygotes. Here, OXTR is linked to Anxiety.