How do you know for sure that he actually is falling in love with you?
Many guys use the whole "I am scared" to fall deeply in love as an excuse to get out of a relationship.
If a guy really,
truly loves you as much as you think
he will not want to let you go.
If he lets you go,
and walks away,
it is ONLY because his feeling are not as strong as he thought they were initially.
Men are very fickle and flaky.
You cannot believe everything they say,
especially early on in a relationship,
because his lust is talking.