He doesn't want me close to his mother? WHA?

[MM8815]

I have been talking to a wonderful guy for about 5 months & we just recently got into a relationship. Honestly, I'm crazy about him, & seems to be just as crazy about me. But here is one flaw; He doesn't seem to like the idea of me talking to his mother, let alone getting close to her.
I can't figure out why. I would ask him if he's hiding something I should know about & he always says he's not hiding anything. He always says, "If you talk to her, don't talk to her about me." But he doesn't seem to care if I talk to his other family members; it's just his mother. I'm just baffled. I honestly don't think he's cheating on me, and I don't believe he would have the time even if he wanted to; he is a full time student at a college, plus he works when he's not in college. So I pretty much have that one ruled out. Does anyone out there that would maybe have some sort of idea of what this could possibly be about?
[PS. We're both 21.]

[QueenofCorona]

I'm sure he has a reason and I'm sure you'll find out that reason...in time. Let it be on his time. Don't hump him about the issue or you'll only push him away from you. Just respect his wishes for now.

I don't think its about cheating. Who tells their mom they are cheating on their gf? Maybe in the past his mom has said too much to a previous gf or thinks she'll disclose info to you that isn't her business to be talking about, not as in scandalous info but maybe embarassing.

[Gigabitch]

She's probably embarrassed him beyond endurance in the past. My high school boyfriend's mom delighted in embarrassing him in front of me. Hateful cow.

[MM8815]

I don't think its about cheating. Who tells theiri mom they are cheating on their gf? Maybe in the past his mom has said too much to a previous gf or thinks she'll disclose info to her that isn't her business to be talking about, not as in scandalous info but maybe embarassing.

That is EXACTLY what another woman [I asked] said.
Yeah, I'm afraid pushing him any further on the matter, because I don't want to upset him or piss him off. He has quite the big ego, so I bet that IS the case. Thanks!

[MM8815]

She's probably embarrassed him beyond endurance in the past. My high school boyfriend's mom delighted in embarrassing him in front of me. Hateful cow.

It makes sense.
Wow. That had to be hard :[
Thank you :]