Story sounds funny.
Sounds like he fukkd, repeatedly. At his leisure. On his schedule. You caught feelings. He didn't reciprocate at same level. Time went by. He got his girl (who you knew about) pregnant. First couple months as a father have finally passed and he's settled into the new routine. His schedule is now predictable so now he has some time for you again. He just called. You want to answer. But you feel kinda sleazy now so you decide to concoct a scenario whereby it is you that is in control of the situation. He won't trip bc you'll respond. You will meet for dinner. You'll crack jokes about him being a father and his baby mama. He will laugh, then tell you he's stressed. You'll say "oh so that's why you wanted to see me?" You will act offended but he won't buy it. You will end up in his car, your head bobbing up and down.