Caught Between Commitment and Desire

I've been engaged to Sarah for over a year now. We're both studying at the university and have plans to settle down after we finish our degrees. Everything seemed perfect, until I met Lisa in my thesis defense group. Lisa is brilliant and outspoken, with an infectious laugh that lights up any room she's in. She's got this magnetic presence that pulls you in. It started as just a mutual intellectual attraction, but it didn't take long for something more to develop between us. We began exchanging notes late at night on the group chat, talking about everything and nothing, sharing personal stories. One evening, after several weeks of these exchanges, I found myself sending Lisa an explicit message about how much I desired her. She responded with a coy invitation to meet up in the library at midnight for coffee and more. I hesitated but couldn't resist. We met that night, our hands finding each other under the dim light of the reading lamps. Our encounter was intense and passionate. Her touch ignited every nerve ending inside me. As we kissed deeply, her tongue exploring my mouth with a demanding ferocity, I felt a surge of guilt mixed with overwhelming pleasure. She guided me towards the study carrels at the back, her hand slipping under my shirt, finding the smooth skin beneath. When she pushed me gently onto one of the desks, straddling me, there was no turning back. Her body pressed against mine, every inch of us touching as we explored each other’s bodies with a voracious hunger. She moved slowly down, kissing along my chest, her fingers slipping into my pants, freeing my erection. We lost ourselves in the physical pleasure for hours that night. It was like our hands and mouths had minds of their own, moving urgently over every inch of bare skin they could reach. Each thrust brought a new wave of sensations; sharp stabs of pain turning quickly to waves of ecstasy. Afterwards, we lay entangled on the desk, breathing heavily, hearts pounding in unison as our bodies cooled down from the heat of passion. I knew I couldn't continue this path any longer. I sent Sarah an apology email, explaining that my heart was being pulled in different directions and I needed some space to figure things out. Telling Lisa how much I wanted her but also loved Sarah felt like a betrayal. But sometimes, you can't help what your body craves, no matter the consequences.