Why wouldn't T pass the tissues....

Other time I have had tears (wouldn't call it crying, I try to avoid this so much) T has passed me the tissues. Last week first time seeing T since break we talked about something and I felt myself about to cry, so I do what I do to stop it and T seemed to watch me with interest. Move on to another bit and the tears came even though I was trying not to. I was trying to stop and ignore it at the same time. Again T sat there and just watched with interest, no offer of the tissues. Does T want me to cry? I don't know.

Any ideas?