I have been with my other half for about a year and he has 2 girls and I a son. We have recently moved in together (about 3 months officially). I have met his friends and their other halves and children, this evening a friend of his turned up with Christmas presents for his girls, nothing for my son. Whilst completing our xmas shopping I asked him if buys for his friends kids and he said no, never has, so me returning the favour wasn't really a 'thing' Should I be annoyed that my son was excluded?