This man wants to share some bits and pieces of life with you, or start a topic by eating, so as to deepen some understanding. Of course, if there is an opportunity, we can also go to the restaurant we want to eat together. After all, real food is to be shared with the people you love!
If this man only sends photos of him eating and doesn't invite you to eat together, this man just pretends to be bored and ignores it.