Heeeelllpppp

So I have this coworker and he’s very friendly and such a gentleman he flirts would always me but at first I didn’t even know he was flirting with me.so long start short we started talking and we went on a date and it was so simple but it was the most romantic think to me ( we went to downtown Boston at night just to work around and get to know the place a bit more (he’s from Miami)) because he always tells me how he loves my energy and my mind set. We left at 9PM and didn’t come home until like 5 AM the next morning. My only problems is after that date one of his coworker told me that he has a “lady” so I asked him and he was honest and told me yes but he would like to explain in person if I gave him a chance. So I did and he showed me text that she “the lady” asked for a break (by the way they have been in a relationship for almost 5 years).He talked about and he apologized and asked me what’s going on through my mind and I told that I feel like he needs time for himself as of rn. But I really like him I see him every day and idk how to feel or what to do 😖