A Secret Shame Since My Divorce

I've been having a hard time adjusting to being single again after my divorce. Lately, I find myself getting turned on in ways that feel completely foreign and wrong. Tonight, I was at home alone, feeling restless and lonely, when I started touching myself. What came next shocked me, I imagined it wasn't my hand but another man's, a stranger's, taking control of the situation. It got so intense that I couldn't stop it, his fingers pressing into me hard, then his cock sliding in rough and unrelenting. The physical sensations were overwhelming, electrifying. His hands on me everywhere, leaving marks and bruises behind as he took what he wanted without any question or care for my desires. Afterwards, lying there gasping and sweating under the afterglow of it all, I couldn't help but feel ashamed and confused. Is this normal? Am I supposed to enjoy something like that even if it's just in my mind? Should I try talking with someone about these fantasies or am I being silly overthinking things?