So I've been dating the most wonderful guy for 3 months now. We see each other twice a week and spend alternate weekends together when our children are with our exes (he swapped his weekends to match mine at the start of January). We get on amazingly, and we behave like we're in a relationship but have never had "the talk". There is no way I'm raising the conversation with him. The mere thought makes me cringe, and I know it would him too. We're also not 14 
. He calls me most days during his lunch and on his way home from work. Pretty much every night before bed hw will video call me too. When we go out for walks on our weekend together he will hold my hand and look after me. He talks about future events such as going away together sometime when life allows us to (post Covid), and also being able to do things with our children. He's even said things like "let's see if you still say that in 2 years". I asked him last week if he thought this "has legs" and he immediately responded "yeah" with a tone of disbelief that I was even asking before saying "are you mad?? Why else would I be here?". On top of all this my son and I have been spending a couple of hours here and there with him and his son (they're both 7). As far as the children are concerned we're friends. Both he and I are very cautious and sensible where they're concerned, but the fact he invited me to spend time with his sin is, I think no small deal.
Do guys just assume they're in a relationship after a while? Is it pretty safe for me to assume that he's assumed we're in a relationship together?