It seems to me that what you need to strenghten out immediately is your career first and then be hopeful for his decency. But, I feel that he is not honest. All he could do is to meet with you and his son together and talk the relationship intent over. If he does this meeting, then there is a probable reason for good intention towards you.

Sister. Run now. if he loves you for real he should be compromising and tender. You have an alarm from him. "Get out". your Man is on the way. I dont mean to be harsh in my words but there is no smooth road in relationships and the guy doesnt seem that he could handle romantic stress and to fix broken things. His words are predetermined should your friendship gets sour. Please just Get Out. I am over overseas and we see this every minute. There is danger light.

Dear Sister, unfortunately you went through rough road in the first marriage and its not your fault that it went sour. However, you must not be afraid of Men because there is always a good listener meant for you. Men sometimes are ridiculous and mischievous to win a woman and later despise the course. But pray and ask God to provide yours to you and move on ok? Rebecca was meant and provided for Isaac.

Romance and Marrietal choice depends on the involved couples and no other person's business. Love knows no boundary. Personally, I support matured couples because they make difference in decision making and moral reasoning.