Some dogs may be unbothered about the intimacy until there is a lot of vocalization by one or both partners, at which point they may become concerned that something bad is happening. A concerned dog may attempt to interrupt the event or prevent intimacy in the future.
Also, can getting a dog ruin a relationship?
Some experts say it’s becoming more common for couples to bicker over their pets, and in some cases, these “pet peeves” can lead to separation or even divorce. But at least one psychologist says fights about pets could be masking deeper relationship issues.