A faint blessing
When a boyfriend only sends a simple "happy holiday" on the holiday, perhaps there is a faint blessing and some other considerations behind it.
Busy work
Maybe my boyfriend is stuck in a busy job, and the busy workplace allows him to only take a moment to send a brief blessing. At this time, he may want to express his heart through concise words, but it does not mean that he does not pay enough attention to the festival.
Express conservatively
Some people are more conservative in their expression of emotion, and they may think that expressing affection does not have to be expressed through words, but through actual actions or concern. Such people may be more focused on practical actions during the holiday season and less willing to express themselves too much in words.
Calm personality
A short blessing may also reflect the personality traits of your boyfriend, who may be more calm and reserved, and not good at expressing feelings with rhetoric. This does not mean that he is indifferent to your feelings, but that he expresses his feelings in a more restrained way.
The way of communication is different
People differ in the way they communicate, with some preferring to express feelings through words, while others are better at conveying emotions through actions. Boyfriends sending only one word of greeting may be the only way he thinks holiday wishes are not the only way to express emotion.
The mind is in it
Although it is only a short blessing, it does not mean that there is no sincere heart. Perhaps, he believes that the core of blessing is sincerity, and words are only part of the way to express it. Behind this short statement, there is still his concern and wishes for you.
Conclusion
Therefore, when interpreting the phrase "happy holidays", in addition to understanding it literally, it can also be considered from a broader perspective. Perhaps, in this short sentence, there is a boyfriend's unique way of expressing and his personal emotional outlook. In getting along, gradually understanding and respecting each other's expressions is also a way to promote further feelings.