Protein Argument?

I'm in the pursuit of abs and lowering my body fat percentage. I'm 5'8, 130 lbs, but still a lot of fat to lose, especially on my stomach. I've been eating 1450 cal a day and lost 10 lbs since January. I've been weight training 3x a week and cardio 3-5x a week.

I'm getting conflicting information, so maybe some of you can help me sort this out.

I work out with a trainer who told me I need roughly 70g of protein a day to get to my goal of abs. However, my boyfriend is also a trainer (just not mine) and he says I need 1g for every lb I weigh, which would be 130g!

When I told my trainer what my bf said, he said that was an old bodybuilding way of doing things and it's just unnecessary.

When I told my Bf this, he maintains that I need more protein.

So I'm not sure who to agree with. My trainer is in great shape and trains models and actors, so clearly he knows what he's doing. However, sometimes he'll tell me something one day and the next day say the exact opposite. He can be a bit unreliable.

My bf is newer on the scene, also in great shape, and he's very well-educated and knows a lot on nutrition and is constantly taking new courses on the subject.

So which is it? How much protein do I need? Obviously I'd rather eat the 70g just because it's hard to get to 130g in a day. But I really would like abs to show soon and to get more muscle overall.