To keep your relationship strong and encouraging, you must respond compassionately to your partner's mood swings. Here are a few tactics to think about.

1. Develop Empathy: Begin by realizing that underlying feelings and stressors are frequently the cause of mood fluctuations. Be kind to your partner and acknowledge their emotions without passing judgement. Make sure they know you are available to help and to hear them out.
2. Communicate Openly: Promote direct, honest communication between you and your spouse. Provide a secure environment where kids may freely express their feelings and discuss what's upsetting them. It's important to listen intently during these discussions.
3. Have Patience: Although mood fluctuations might be annoying, it's important to have patience. Recognize that your significant other might not always be able to control their emotions. Allow them the space and time they require to go through their emotions.

4. Remain Calm: It's important to maintain composure when experiencing mood fluctuations. Anger or irritation in response can make things worse. Breathe deeply and tell yourself that you are not responsible for your partner's emotions. 
5. Refrain from Taking It Personally: Keep in mind that your partner may not be directing their mood swings towards you. Don't take their erratic behaviour personally. Rather, concentrate on encouraging them and assisting them in emotional self-management.
 

6. Provide Comfort: If your spouse is receptive to it, provide them with physical comfort and assurance. A tender touch, a consoling hug, or just being there can sometimes make your spouse feel heard and cared about.

7. Promote Self-Care: Motivate your significant other to partake in self-care practices that aid in mood regulation. This may include working out, keeping a journal, practicing mindfulness, or taking up enjoyable hobbies. 
8. Talk About Triggers: If specific circumstances or triggers frequently cause mood swings, talk about them calmly with your spouse. Work together to develop effective techniques for avoiding or managing these triggers. 
9. Seek Professional treatment: You should think about recommending professional treatment if your partner's well-being or your relationship are substantially impacted by your partner's persistent mood swings. For the purpose of controlling mood swings and underlying emotional issues, a therapist or counsellor can offer helpful techniques and tools.

10. Uphold limits: Setting and maintaining your own emotional limits is just as important as providing support. Make time for self-care, and surround yourself with friends and family who can support you during difficult times.