notadictionary.com
「愛してるよ」と息子に言った時、ぶっきらぼうに…
→ “"I love you," I told my son, but he was so blunt...”
愛してる aishiteru = to love (v.)
愛 ai = love
してる shiteru = doing / in the process of (colloquial contraction)
よ yo = particle used for emphasis or to add conviction (particle)
と to = quotational particle indicating speech/thought (particle)
息子 musuko = son (noun)
に ni = direction/target marker (particle)
言った itta = said (v.)
時 toki = time / when (noun)
、 = comma (punctuation)
ぶっきらぼう bukkirabō¹ = blunt / rough / abrupt (adj.)
に ni = manner/degree marker (particle)
… = ellipsis (punctuation)