Long Night at Work Turned Uncomfortably Awkward

I've been working night shifts for a little over six months now since my divorce from Rachel. It's been rough, but it keeps me busy and allows me to have the mornings free when I need them most. The job itself isn't too bad, just managing inventory in an electronics store with minimal customer interaction during odd hours. A few weeks back, everything changed. One night, around 2 AM, a new manager named Alex came in for his shift right after me. We didn't know each other before; he had just started working nights a week or so ago, and we'd never really crossed paths. He's in his mid-thirties, tall with short dark hair and this intense stare that I've always felt uncomfortable under. As luck would have it, one night while we were the only ones there, Alex asked if he could join me in my office to go over some new inventory software he needed help installing. Of course, I agreed; it's just part of the job and the store was practically empty anyway. We sat side by side at my desk, with him closer than necessary, his leg brushing mine, our shoulders touching as we worked on the computer. Things escalated more than they should have when Alex suggested that perhaps we could 'take things further' after work one night since we were both alone and available during odd hours. I froze up, unsure if he was serious or just playing a cruel joke. The next day felt like an eternity trying to process what had happened. A few days later, while wrapping up my shift late in the evening, Alex stopped me at my car and reiterated his 'offer'. He seemed sincere, but I couldn't bring myself to respond or acknowledge it fully. Part of me wanted to push him away, another part... well, I can admit that there's a loneliness that comes with being single again after marriage. I've avoided talking directly about this with Alex since then, hoping he'll forget the entire thing and move on. It hangs over my head like an unspoken rule between us, something we can't ignore but also can't address. The whole situation feels incredibly wrong and uncomfortable, yet I keep finding excuses to spend time around him just to see how he'll react next. To be honest, I don't even know why I'm writing this down now. Maybe it's cathartic or maybe it's a cry for help in some twisted way. Either way, here it is, the story of my night shift life taking an unexpected turn into something that never should've happened.