nice legs on righty.
I do think he likes me a lot and from what I gather from our conversations, I don't think he's a player. I really do think he's looking for a good woman to settle down with. But, I've been wrong so many times before about guys..
I think its kind of lame that you gave her your number and asked her too call you. Why didn't you just ask her out on the spot and then when she said yes get her number.
You need to talk to him about this. Not find ways to make her just happen to disappear, or hope that new friends will fix the problem. The problems lies between the two of you, and the two of you is who can fix it. You made the mistake of letting them continue on, accept that you made this error, and talk to him about it. Explain how it makes you feel without coming across as controlling. "Honey, I thought I could handle you two being friends, but because xyz I realized that I was wrong.".