Wow, sounds to me its kinda easy. Boys are similar nowadays. I was once like your bf, when I get stressed out on assignments and stuff. At first we regularly had stupid arguments about it, but later on, she started to show support. She was there for me when I'm having a hard time. She doesn't nag me or pick a fight as often as before. And that helped a lot because when shes there for me, automatically I notice her. And any problem that arises after that, she would be there, understand me and I really appreciated it.
When you're in it together for good or bad, he will notice you. And later on in life, whenever she is having a hard time, I don't demand for attention, Its all about give and take. Doesn't mean if he never did it, you wouldn't have to do it.
If you think what I just typed doesn't seem much of a help, the best thing to do is have a personal talk without letting anger/jealousy take over you. Be understanding and rational. Sometimes we (boys) are stupid. We need our significant others to point it out, THEN we'll know. Well you know how girls with the details, and boys are bad with details. :

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