mostly directing this question to man

It could mean that but generally it means they have a weak character.

Whether or not someone loves you (when they've cheated ... especially if it's been repeatedly) shouldn't be the determining factor of whether or not you stay in the relationship. your happiness and peace of mind has to matter ... to the both of you. Apparently it only matters to you. Is that enough for you?

True ragman thanks I suppose its he indication that he does not care that much

He might be one of those that just can't commit or doesn't know how to love. Sorry you have to endure this.