It's a bit tricky, I agree. Like with most of his positions.

During the campaign he said that he's against the supreme court ruling since it should be decided by the state. He also said in an interview that he is for "traditional marriage".

It could be worse, except that he has a VP who is a huge opponent of LGBT rights.

Trump has publicly said he will appoint judges who will overturn Roe v Wade. I expect that if he goes through with that gay marriage will also be attacked.

They will certainly be attacked but unless conservatives get a sixth seat in the court, they are unlikely to succeed. Justices are political appointees so there is some selection for values at play but they take their jobs seriously and vote across partisan lines much more often than our politicians.

Justice Kennedy, the conservative swing vote, has been supportive of restrictions on abortion but he has explicitly said that he prefers to defend the precedent Roe v Wade set. He even wrote the majority opinion in support of marriage equality. Even in controversial decisions like Citizens United where I vehemently disagree with him, I have to admit that he seems like a dedicated constitutional scholar that believes in preserving the integrity of the institution of the Supreme Court and the US constitution. His opinions are well thought out, are based on a balanced view of strict and loose interpretation of the constitution, and he takes his role as a bipartisan seriously so I think we still have a reliable firewall in the court.

Pence is rather anti-lgbt.

But you have to ask yourself whether any other Republican candidate would have an open homosexual (Thiel) on the stage at the RNC and whether they'd be caught dead doing this:

https://qzprod.files.wordpress.com/2016/10/carlo-allegri-don...

As a politician seeking election, he said various conflicting things. You can read into this what you want, but I certainly wouldn't consider it strong support for marriage equality:

WALLACE: But, Mr. Trump, let's take one issue. You say now that the Supreme Court has ruled that same-sex marriage is the law of the land and that any politician who talks about wanting to amend the Constitution is just playing politics. Are you saying it's time to move on?

TRUMP: No, I'm saying this. It has been ruled up. It has been there. If I'm a, you know, if I'm elected, I would be very strong on putting certain judges on the bench that I think maybe could change things.

But they've got a long way to go. I mean at some point, we have to get back down to business. But there’s no question about it. I mean most -- and most people feel this way.

They have ruled on it. I wish that it was done by the state. I don't like the way they ruled. I disagree with the Supreme Court from the standpoint they should have given the state -- it should be a states' rights issue. And that's the way it should have been ruled on, Chris, not the way they did it.

This is a very surprising ruling. And I -- I can see changes coming down the line, frankly. But I would have much preferred that they ruled at a state level and allowed the states to make those rulings themselves.

WALLACE: But -- but just to button this up very quickly, sir, are you saying that if you become president, you might try to appoint justices to overrule the decision on same-sex marriage?

TRUMP: I would strongly consider that, yes. [1]

[1] http://www.foxnews.com/transcript/2016/01/31/ted-cruz-attack...

He's personally against same sex marriage, but he's not going to force it onto other people. They are free to marry whoever they want.