Son, 14, told me he is Bi - sorry - long!

Hi, My son told me last week that he thought he may be Bi,
as he had feelings for a boy. He told me that he has spoken with his CPD teacher about it.
She told him that if the feelings didn't go away for the other boy in a week, then he probably was. I asked him if he had those feelings for a girl ever, as he may not be Bi but gay, and he said sort of but not like this.
I have no problem with this, as long as he is happy, I am happy. I worry about how he will be seen at school, but his group of friends are a range of LGBT and straight. I did wonder if he was just saying this to 'fit in' with his friends, if you get what I mean. But this last weekend he has asked the other boy if he felt the same. At first he said no, and never would, but the next day he admitted he felt the same. His parents don't know about him, even though he has had a boyfriend before. They are separated from what my son tells me, and there are lots of other issues there, so I think that is why he hasn't said anything to them.
My son has spoken to me and my sister about how he feels, but doesn't want his dad to know yet. I find it hard not saying anything, but I understand it is my son's choice. I also don't know how accepting he will be. :icon_sad:
He has asked if his boyfriend can come over in the holidays, and if I would be going out so they could be alone. I am not happy to do this, I don't mind him coming over but not to be alone. Before he told me though I wouldn't have a problem with him being home with a friend, is this hypocritical of me?
I also wonder if I should see the CPD teacher, as I would like to know what she advised. My son told me that she had told him that Anal Sex does hurt, but to use anal beads to help get used to it... We've had the safe sex talk, I've told him I don't want him having sex until he is 16, which he agreed they were going to wait. We also spoke about oral sex, I said that it is also 'sex' and I would hope he would wait, and to be safe.
My sister's advice was to get condoms in anyway, and to practice putting them on because they can be tricky! He has said he has kissed him on the cheek, as his boyfriend had a cold sore, and they have told only a few friends at school, but that it feels weird trying to hold hands at school, as there is a boy who annoys them and he thinks this would make them more of a target. I do worry about how he will be seen.
Anyway, just after advice, I am tying to think how I would feel if it was a girlfriend and treat him the same, but he's my eldest and I don't have my husband to talk to about this. I can't look back at my own experience at his age as I was brought up in a religious family that didn't believe in sex before marriage, and never had a boyfriend until I was 17, thought we never even held hands, and I didn't meet my now husband until I was 23. I am no longer religious, so thankfully I accept him as I wouldn't be aloud to if I was still religious.
Sorry this is a long waffle! Thank you in advance!