Basically I met him (36,m) at work around 2 years ago. Last year we flirted with the idea of dating which ended up being put on hold when his ex-wife started a custody battle of their kids (10,m 8m). Since then his ex is completely out of the picture and we have slept together multiple times and confessed that we are in love with each other. Yet still haven’t defined a relationship as he can’t commit to that while in therapy.
My problem is he has a friend (34,f) who has 3 kids (9f, 7f, 1m) which he claims he is the “father” too. He is not the biological father of these children and rather calls them his adopted kids. He is a great dad to all five kids and bends over backwards for each one of them. He is very close with the mum and also will do anything for her.
I don’t want to get jealous or anything but sometimes I can’t help it, should I be concerned that he is stringing me along and wants a relationship with her? How is this something I can discuss with him without sounding too jealous or controlling. At the end of the day I wouldn’t mess with the kids upbringing and wouldn’t stand in the way of them, but at the same time I don’t want to lead myself to getting hurt.
TL;DR: should I be worried that my “situationship” calls himself the father to his friends 3 kids and that he will end up in a relationship with her while leading me on?