If he wants something he gets it, one way or another. That is how he tried to hook up with you. Being a stalker is not what he likes to be named at but breaking into your home and sleeping beside you unknown by his presents aren't helpful. Neither is breakfast in bed without him around. Don't bother telling him to get lost...he won't. Best thing is to play along and give him a spare key.
What really gets to him is when you take the lead. He feels insecure when you talk about a future together and kids, that really makes him run for the hills. Give him time and down fall for his flirt attempt right away. He is more vulnerable than he lets on. If you are capable to take your time with him, building up a relationship of trust and support, he might start to plan his family with you...
...this might freak you out. If you don't want to, run for the fucking hills and never look back.