If u r really interested in him y not go out with him EVEN if u
have flu or cold? Its always ok to go n have a cup of nice hot
coffee or something rite? In fact he will be touched that u made
such an effort.
Trust me 4 years is a lot and probably you are not putting in
enough effort. How often do u or he ask each other out? once a
week? once a month? once every quarter yr?
I did go out a lot of times when i was sick or was gonna have
examinations the next day. And yes I got scolded by "her" for doing
it. But at the same time she was touched as she realised that to me
meeting her is more important then other stuff 
