Is this Transient mental condition or mental illness?

[Anonymous]

I am a military man, I am 25 years old... I have not met girls for a year or more and I have no longer the desire to speak to a girl or enter into a relationship... even if my thinking about women has differed and sometimes my conscience deplores me when I see my friends with their wives and I feels jealous.

[Avicenna]

It's transient in all likelihood