If it make me want to cuddle, then I'd be enjoying it right? So whats the problem? You're both happy.
		
		
	 
Well the curiosity is in how long the effects are, and whether there are any lasting personality impacts.
Regardless of what one believes is right, or their opinion on gender roles in the social world, a man tends to need some of those male traits to perform successfully as a man in the social environment. 
What I mean is, take the example they provided: building things, fixing things, in general doing "manly" things. 
Because many women will call on these men to do that. It's not a matter of men learning to act a certain way, or of women learning to become a certain way, but rather... it's in our genetics, in our brain. 
I've already said I'm split-brained. Between simple tests online, and general acknowledgment of how I think and view things, whether it's scientifically accurate or not, I accept I have a relatively evenly-split male/female brain. 
It's a fact those two types of brain-constructs exist, and a fact many have a mix to some degree of both types. 
You absolutely, at this point in time, cannot alter your brain structure. Because of that, everyone is going to have a calling of sorts, that largely determines how they view things and how they behave. Behavior can be shaped, to some degree, but their natural drive will forever linger in their head somewhere - but it's the decision-making center that helps us understand whether actions we take, positive or negative, will be accepted by society. 
BTW: don't chastise me for this post, society is society and these things are just natural and social facts. There are, will always be, and should be, people of both genders that mix things up a bit: the more technical/"handy"/craft-oriented female, the more empathic male. Nothing socially wrong with that imho.
My point is: what makes someone happy in small amounts, is not always a good idea to always surround yourself with. 
Me? If this kind of spray acts kind of like a drug, where the effects are temporary and there are no lasting side-effects personality-wise, I'd be down for it when sharing time with an SO; I, however, wouldn't want it effecting me at all when not around the SO. Nor would I want it effecting me every single moment I'm around an SO.
IMHO, relationships are best when, most of the time, the personality characteristics are not extremely similar. Each party in the relationship should have a strength the other does not, as it makes it more of an equal pair in the end. The more male-brained person will need the more female-brained person for certain things, and the reverse is equally true. 
Interests, personality quirks, behaviors... those can be similar, but the fundamental root of the natural drive would ideally not be the same. 
I'm no relationship counselor, so my opinion likely has no weight. I'm just looking at it from a natural perspective. 
