Cheating Libido, Faithful Actions

Some years back I fucked this Scandinavian guy on a vacation. I have never tried anything like it! He dominated me from the get go and then he was the kindest and most caring human outside the bedroom. My pussy was dripping all day with him.
He fucked me for at least 90 minutes each time, and that is not counting like half an hour of just eating pussy and the same just fingering. Some times he would do foreplay for hours before fucking me. He had an average sized dick, but shiiiit could he use it! He taught me how to squirt, orgasm from penetration, that it is ok as a woman to request pussy breaks during sex. Although these usually meant I had to suck his cock, eat his asshole or let him eat my pussy.
He fucked me so good that I had trouble walking for two days after.

Now to my problem! I am dating a man now from the UK, whom I really love! He is good in bed, but TBH, nothing compared to the other guy. My is most days satisfied, but on a weekly basis do I fantasise about those fuck sessions, and I catch myself planning in my head, how I could go back and just let him fuck me. I have even told him I will let him do anything to my asshole also.
Unfortunately he has a girlfriend whom he is head over heal in love with... So I guess I have to hope that my man improves (from what is already very good sex) or that the other guy becomes singel again...