1) logically I have this Hpv type at least 3 years. Can it clear naturally after so long?
90% of people clear HPV in 2 years. The other 10% just take longer. So long as your immune system is healthy (you don't have any other major illness, you aren't immunocompromised by chemotherapy, etc.), you just may need more time.
2) what can I do to clear it
I'm sorry, I know it's frustrating, but you just have to wait.
3) should my boyfriend get tested too?
There is no test for men for HPV, but he undoubtedly has it already if you've had unprotected sex with him.
4) a I’m with my boyfriend 10 years before him I had only one another partner. Is it possible to have it from the first one 11,5 years before?
It's possible. It's possible your boyfriend had it before you. It's more likely that your boyfriend was exposed more recently. If this is the only evidence of that, though, it's not enough to prove he cheated.