Bf acting different?

well weve being going out over 2 and a half years lately we have been arguing hes being going through some family crap which i think has changed him but his dad is back with his mum now,ive noticed now as silly as it sounds that he never writes babe or i love u in texts anymore just all of a sudden ever text i got used to have i love u on the end,hes not so attentive anymore and just doesnt seem the same old him towards me do u think hes falling out of love with me ,even if i asked him he wouldnt tell me to spare my feelings obv how can i tell :( i asked him about the texts and he says he hasnt noticed but i can tell theres something not right