We've developed a good rapport.
In the beginning, I tried to build a rapport with him but, after being snubbed more than once, I just don't want to make the effort any more.
Appreciation and praise can go a long way towards building good rapport.
By listening instead of waiting to speak, you can understand what motivates others, which can help you build rapport with them and understand yourself.
Therefore, you must build a sufficient amount of rapport and comfort before a girl will even think about touching you, let alone kissing you!