I can offer some general insights that might help you think about the situation.
It's essential to understand that emotions and perceptions can vary significantly from person to person. Your current husband may feel uncomfortable or insecure about your ex-husband giving gifts to your mother, and he might interpret it as a reflection on him. He may worry that it makes him look inadequate or that there are unresolved feelings between you and your ex.
In this situation, open and honest communication is vital. Try to have a calm and non-confrontational conversation with your husband about his feelings. Allow him to express his concerns and listen attentively to what he has to say. Similarly, share your perspective and feelings about the situation. It's crucial to validate each other's emotions and find common ground.
While your husband may feel upset about the gifts, it's essential to evaluate the intentions behind your ex-husband's actions. If the gifts are genuinely innocent and a way for him to maintain a friendly relationship with your mother, that's something you should communicate to your husband. Assure him that the gifts don't affect your commitment to your current relationship.
Ultimately, every relationship is unique, and the resolution will depend on your understanding of each other's feelings and willingness to compromise. If the issue persists or becomes a source of ongoing tension, consider seeking support from a couples counselor or therapist to help facilitate productive communication and find a resolution that works for both of you.