I get your point but I would argue against.
We can probably assume that men in relationships get more steady sex than single guys. But it's a proven scientific fact that
men who are married or in LTRs have lower T levels than single men. Instead of the warrior hormone being expressed (Testosterone), the teddy bear hormone (Oxytocin) seems to flow. Nothing wrong with that, just fact.
Exception would be if OP or anyone is super lazy, never exercises--especially weight lifting, and eats like s*it, well then yeah, their T will be low. Extremely overweight/obese men actually start manufacturing estrogen. Why you see many fat guys with b*tch t*ts.