Angels Lip Locking

The past few days my pair of angels have been pretty heavily lip locking. They have spawned twice, and are in a tank on there own. They have lip locked a couple times, but not this bad. So now they both have nice white beaten up looking mouths.

I know this is normal, just wanted to know the best way to treat them, guessing clean water and it should heal up pretty quickly (as long as they stop sucking face long enough for it to heal).

Thanks.

Are angel pairs usually this aggressive to one another? I woke up yesterday morning to find the female with a big chunk missing out of her pectoral fin and about half of one of her ventral fins missing. I am carrying out daily water changes, and her mouth is starting to look better, just a little shocked to see how much damage the male is causing her.

The odd thing is when they were in the community tank, the male was very passive (even towards the 3rd angel) and the female would often come between the male and the 3rd angel. The male would usually just shy away from any conflict. I did notice though that the last time they spawned the male was very protective, if I came near the tank he would zoom right to the front in an aggressive stance.