Feel I am dating myself

Hi...in a nutshell, met a guy and hit it off online. we talk daily, sexually compatible. sweet guy...but we never go out . He has obligations and some debt, works alot and shares his kids...I understand but I'm ready to try and build a relationship....why do guys go online and only realize after they need to work on some things.....pissed. I go and do things with everyone but him, my friends go out with their man, feel like a loser. I'm starting to feel alone, and it's wierd to feel this way. I told him just walking or sitting in a park is a good start. I don't know how to bring this up again with him (said it 2x) without starting a fight....help! I don't want the lonliness to become something else and make a mistake.