need advice on a friendship/relationship?idk

So I'm trans but not on hrt yet. I'm not outed at work and not planning on doing that anytime soon for safety reasons. On top of that I always thought of myself as aro ace. But there's this guy at work that i have such great chemistry with and i think i might be slowly falling for him. There were even roumours that i was in love with him a few weeks after we started talking but back then i didn't consider having any feelings for him. I'm pretty sure he's straight and probably wouldn't date a trans guy anyway. (I'm so sorry for this being so chaotic lmao). Besides work we write to eo sometimes and play games and today he invited me to his house. I'm considering accepting that and i think there might be some action ifykim but should i go for it knowing there's no chance for a relationship (he terminated his work contract and there's like a month or so left before he stops working) and he doesn't know I'm trans or should i stop thinking about him in terms of something more than friendship