the thing that comes to mind is:
you're Worth it to be the only women a guy's spending this amount of time communicating with and spending time with.... Doesn't he have guy buddies he can chill with??
This situation would be a red flag to me and frankly, i wouldn't handle it well either... because well, i'd no longer be with him, he could have his "other best friend" and i'd be onto someone new who would appreciate me better.
i think you deserve more and someone who is Devoted to YOU not 'you and some other woman.'
What you do is your own choice, but know that you are worth more than the way he is treating your relationship right now.
Don't let some guy who wants it all waste your time.
Sweetpea