Is it really just space or is it over?

I started dating a guy a few months ago & this past week he went on vaca. I talked to him yesterday on his way home from the beach & he told me i gave him no space while he was there but i had no clue he wanted space. I asked how he felt about us and he didn’t want to together if i acted that way. He’s the one that told me he loved me first & that he was falling for me. I have had trust issues in the past bc of bad relationships and am always thinking the worst? Do you think he is still interested or do you think its over? We’re also in long distance relatoinship which makes it hard? How long should I not bother him for? Have I ruined it?