So I moved to Belfast in September with the idea of moving back to spain after xmas. However I then fell in love with my housemate, stayed and got a new job in order to continue with him. Through-out the relationship there were issues which made me doubt my trust in him, such as messages found, lies found out and a past he never spoke about (He used to sleep around a lot). I work nights (11-6am) and went to work last weekend, knowing he had friends coming down from his hometown for a few drinks. Upon returning I found him passed out asleep with his phone opened and an unread message. After reading through the messages sent to him and from him, they were from an unsaved number, however I almost surely recognise the number from his old phone which used to be one of his regular hook ups. The messages started with the other guy asking if they 'were still on tomorrow night' sent at 11:52 (when I would be in work). Then after confirming they were and a bit of chit chat which included that they were friendly and both drinking with friends, he then messaged saying he couldnt speak at the moment after my partner had tried to ring him. Then at 04:23 there was a message sent from my boyfriend asking if the contact was 'free at the moment', again aware I wasnt home at 6. All in all this was a breaking point for me, as I found out also that his whatsapp on his usual phone (which is currently broken and hes using his old SIM and phone) has the same number as his old mobile (The one he is receiving messages from now), the whatsapp never had any messages on it whenever I asked to use it. Upon asking and confronting him about it, he replied that it was a 'joke' and did it to amuse himself as the guy was 'obsessed' with him. However then lied and said he left his phone upstairs when he went to the shops in the morning, I could see it in his pocket however. Upon bringing it up again, he said to me that he sent a message to he guy and told him to never talk to him again, he however deleted this text apparantly so he doesnt have access to the number for my sake. He also burst into tears when I said that I cannot deal with it and suggested that we call it a day. Since then he has been more loving towards me. Constantly telling me how much he loves me ect.
I love this guy so much, but I dont see how the other guy which he never speaks to apparantly would know about him using his old number again, especially not on whatsapp, and even so- what did he mean about being 'on for tomorrow night' still. HELP me I need advice and guidance, im all alone in belfast so cannot rely on friends or family.
I should also add that I do believe he loves me, he does everything for me and helps me out with whatever I need, even paid for me for 2 months when I was out of work. He always looks out for me and makes sure I feel alright, also we are so loved up when we speak day to day. I just think maybe he cannot let his past go? Or perhaps after confronting him he will stop whatever is going on?