Breaking an oath

Q: Does one have to keep a fast when breaking a qasam? On normal circumstances people will but does one have to fast three days for breaking a qasam if this person is in a habit of taking qasams e.g. Kasam you are going to do this and that person doesn't do what the person who takes the qasam has said. Now that the person hasn't done what the person taking the qasam said does the one who took the oath fast for three days?

Supporting gay marriages

Q: A Muslim answered the questions put to him by a non-Muslim as follows:

1. Do you stand for gay people's rights?

"Of course."

2. Do you stand for gay marriage?

"If the 2 individuals who are of the same sex want to be married and they go for a civil partnership or marriage or whatever it is, if it is provided
within the constitution and within the legal systems of our country, then they are entitled to."

Would this render the person answering a murtad?

Not looking down on others

Q: How does one stop looking down on others? e.g. I recently went for 10 days jamaat with 1 brother, and on returning home, the first week back he is already very slack with his amaal as before. Now the fact is that he is not punctual with his amaal at all, and I look down on the unpunctuality but say to myself that he is a good person and must make dua for him, and make shukr that Allah grants me tawfiq to remain steadfast, and think that I musn't look down on him because maybe our situations could be reversed one day, etc. So  in this situation is this considered looking down on others, pride?