I think Valentine's Day is a waste of time, but I still feel obliged to send my wife a bunch of flowers.
(usu. passive) make sb. feel that it is necessary to do sth
oblige
vt. Ob+ lige(捆- 约束，义务)迫使，使负有义务Obligation  n (U,C) 义务，责任
be / feel obliged to do
父母以为有责任尽其所能给孩子提供最好。
Parents feel obliged to provide the best they can for children.
Most men are allergic to housework
1(be ~ to sth.) (infml.) if you are allergic to sth., you do not like it and try to avoid it2having an allergy
allergic
1不喜欢某事；  ...