Please choose the correct ending to complete the given sentence: Relationships: [header] How to guard your relationship from infidelity [title] Talk about cheating. [step] Especially if you're in the beginning stages of your relationship, be bold in bringing up cheating. Talk about whether you've cheated or have been cheated on, and ask your partner about his or her past.

Ending1: Have an open conversation about what mistakes your current partner has made and if this is a reason for the cheating. [substeps] It's also important to be honest about your role in some past betrayals. Ending2: By talking about cheating, you're calling the whole relationship into question. [substeps] It can be beneficial to express to your partner that you're wondering what he or she would think, and that you're worried about your relationship coming to an end. Ending3: [substeps] Don't ask, " how long have you been sleeping on your partner in the past? " these are not about talking about cheating, but about how you feel about your partner. " how do you feel about the fact you cheated on me? " they can be very touchy subjects, even between loved ones. Ending4: Talk about what would happen to the relationship in the event of infidelity. [substeps] For example, if one person cheats, is the relationship over, or is there room to work through it? How have your past experiences shaped your views now? [title] Define your boundaries.

Answer format: ending1/ending2/ending3/ending4