How to calculate when one or the other feels the impression of love is astronomical.
There are many factors that can influence the decision to make it known, verbally. The old saying, actions speak louder than words. Choosing the right moment, can be difficult to say, for some or simple for others.
If you don't feel the same way, at least appreciate the emotion and deal with it thoughtfully. Praise for the thought is great, don't take it too far tho, if you don't feel the same just explain yourself. Communication is everything. Gentlemen, realize that women are the inner seed, the delicate, men are the outer shell, callous.
Rejection, due to the words would be catastropic and rightfully so, be tactful in determining, if/or cessation or recognition, is/may be in order...