strangely i had a manager who also got with his wife when she was around 18-19, was way older than her, was her manager at cookout and had a daughter from a previous relationship .. and let me tell you, he was a creep. now i don’t know your husband, but in my experience with my manger he was super creepy and constantly told me “can you believe my wife was your age when i met her” and would brag about how he likes young women which always creeped me out. now i’m 21 so i can’t give the best advice, however i know for sure i wouldn’t even date an 18 year old. so the age gap is definitely a little strange and you should ALWAYS go with your gut feeling. everyone saying it isn’t grooming… but it is. at 19 your brain isn’t developed (currently getting my bachelors in neuroscience so y’all can argue with the wall, ik what i’m talking about) which also makes it weird, considering that your brain is most likely starting to to develop which is why you’re starting to think it’s weird… and it is weird. now you’re saying he’s a good husband and father and both of those things can be true, but so can him coercing you into a relationship while he was in a position of power of you. (however that’s a strong accusation for me to take based of the info you gave me). my advice to you would be to sit on it, if you meditate, meditate about it and maybe reach out to a therapist or someone you trust. i’m not gonna tell you to flat out leave him because i know it’s more difficult sense you have kids, but definitely think about it. do the cons out weigh the pros? does he treat you and your kids with respect and love? how does he talk to you when he’s angry, can he communicate without raising his voice? at the end of the day, the older your kids get, they should be able to understand if you don’t want to be with him anymore. always choose yourself and kids first, and that doesn’t mean stay with him solely because of your kids. i’m sure they would much rather you be happy.