I’m 40f (married with kids) am in love with a married coworker (39f), let’s call him B, who is also married w kids. B has had a crush on me for a long time - years and years - but it’s intensified recently due to circumstances throwing us together, resulting in subtle work-pretext pursuit, mostly but not wntirelybplaisibly-deniable flirting, territoriality on his side, and non-work invites. However, the situation is tricky, not just because of our families but because we are two of a small group of co-workers who are very lucky to have great jobs in a high-status but dying industry. B has never touched me (except for hugs) and seems physically shy (has been with his wife since he was 20) and he is also very career oriented, anxious, cautious and reputation conscious and ambitious for advancement in the job. Also, we have been long-distance as have lived in different cities (but that is about to change as he is moving to my city/office very soon and is very excited about it). He does seem to surprisingly comfortable flirting w me very obviously in front of small groups of close colleagues (although he claims up and avoids big-time in official work context with the boss around).
Now, my question is about whether he would ever escalate physically. So far in our relationship there hasn’t been a real opportunity with certain reciprocity on my side and privacy. . Are some men genuinely unbreakable? Or would the combination of long-term sexual tension and desire, soul-mate vibes, suddenly same-cities, a direct invitation from me and safe circumstances break any guy?